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Botanical name: Gladiolus

Plant type: Flower

USDA Hardiness Zones: 6, 7, 8, 9, 10

Sun exposure: Full Sun

Soil type: Any

Flower color: Red, Pink, Orange, Yellow, White, Multicolor

Bloom time: Summer

Gladiolus is a perennial favored for its beautiful, showy flowers. Its flowers grow on tall spikes and are often found in cutting gardens or in the back along the border (because they are tall). Gladioli have many different colored flowers, and grow between 2 to 6 feet in height. It's good for cut flowers.


  • Plant gladiolus bulbs in the spring once danger of frost has passed and the soil has warmed.
  • Ready your garden by using a garden fork or tiller and loosen the soil to about 12 to 15 inches deep. After loosening the soil, mix in a 2– to 4–inch layer of compost.
  • Set the corm in the hole about 4 inches deep with the pointed end facing up. Cover with soil and press firmly.
  • Space the corms 3 to 6 inches apart. Water the corms thoroughly.
  • Gladioli like well-drained, light soil and full sun.
  • If you're planting tall varieties, be sure to stake them at planting time. Be careful not to damage the corms with the stakes.
  • It takes about 90 days from the time gladioli are planted to root, grow, bloom, and store enough energy for the next season.


  • Put a 2– to 4–inch layer of mulch around your gladioli to keep your soil moist and help prevent weeds.
  • If you get less than 1 inch of rain a week, water your plants regularly throughout the summer. Otherwise, water them moderately when in growth to keep the soil moist.
  • Remove the faded/dead flowers to ensure continuous growth. Once all the flowers on a stalk have gone, cut off the stalk.
  • Be sure to leave the plant intact so it can mature and rejuvenate the corms for the next season.
  • If you live in zones 7 or 8, put down a layer of hay or straw for winter protection.
  • Corms should be dug before the last frost in you live in zone 7 or ones colder. See instructions below.


  • Gladiolus corm rot (Fusarium)
  • Gray mold
  • Viruses
  • Aster yellows
  • Spider mites
  • Thrips
  • Aphids


Before the first frost, you can dig up glads to store over the winter.

  • Use a space and dig up the entire plant, grasping the top to pull it out of the soil. Avoid bruising or injuring corms while digging. Shake off all loose soil and discard damaged corms. Cut the stalk within 1 inch above the corm. Save the small cormels separately if you so desire.
  • Allow the corms to dry in the Sun for 1 or 2 days if the weather agrees. Sift out excess soil and place corms in wooden flats or trays. Cure ina warm and airy location for 2 weeks (at a temperature of 80-85°F). Remove and throw away the oldest bottom corms (from the base of the new one).
  • Dust freshly dug, clean corms with a fungicide ("bulb dust") to avoid disease problems. Place dust and bulbs or other structures in a paper sack and shake vigorously.
  • Store the large, new corms in paper boxes, open paper bags, cloth bags, wooden trays with screen bottoms, or old onion sacks. Stack or hang the containers so air can move among them. Store the corms at 35 to 45°F in low humidity. A cool basement is quite suitable. Do not
    allow corms to freeze.
  • Replant these corms in the spring for another year of beautiful blooms.

Recommended Varieties

  • Candyman, for its beautiful deep pink flowers
  • Dream's End, which makes a good back border plant because its flower spike is up to 3 feet long (and it has pretty light orange flowers with large yellow centers)
  • Prins Claus, which has white flowers with splashes of pink on its petals


Send a free e-card of this glorious gladiolus.


i love the looks of glads

By Perry J Howe on July 29

i love the looks of glads when you stake them. What is the best way to do this? What should I use for the stakes?

Hi, Perry: We're "glad" you

By Almanac Staff on July 30

Hi, Perry: We're "glad" you asked! Use just about anything that's tall enough and cheap! Tomato stakes, driveway marker stakes (such as to show where to plow), PVC pipe, sections of volleyball net poles, sections of other poles (such as roof rakes), or just plain ol' strong straight sticks/branches -- we've used them all (and more)! (And tastefully, too... or so we've been told.) Tie the glads gently with string or fabric strips. Remember that you can "stake" a small clump by lassoing it with string tied to one or two stakes. For a straight row, one string between two stakes. Beautiful!

thank you very much my though

By Perry J Howe on July 31

thank you very much my though was right wanted to be shure so didnt destroy them

After overwintering, will the

By Tiffan on July 18

After overwintering, will the blooms be simultaneous?

I planted several batches about three to four weeks apart, and I intend to overwinter them in the ground (8b with Texas heat). I'm concerned that staggering my planting will not do me any good when they rebloom next season. I wanted a continual show each season - will they bloom staggered or all at once, in ideal conditions?

I was given some glads bulbs.

By Dorothy Filewood on July 22

I was given some glads bulbs. Is it to late to plant? I live in West Texas. Thank you

In Texas, many people plant

By Almanac Staff on July 22

In Texas, many people plant gladiolus as early as mid-February but you can usually plant through the end of April for summer bloom. We haven't had experience planting this late.

If you stagger your plantings

By Almanac Staff on July 21

If you stagger your plantings through late spring and early summer, you can have glads in bloom from June through September. It's a good idea as the plants only stay in bloom up to two weeks.

Is Digging Up Necessary? I

By Marige on July 11

Is Digging Up Necessary?

I never dig up the corms and they spread prolifically. But I do cover them with oak leaves from a nearby tree over the winter, to protect them from winter snow, ice and any salt used on the nearby sidewalk. These are removed in early spring. Last winter (2013-14) was the worst winter we've had in 20 years. But this spring my glads are going crazy. The only other thing I did was add lime to the soil to balance the pH prior to adding annuals.

I second this comment. I live

By DAS64 on July 14

I second this comment. I live in central Indiana (zone 5) and have been growing glads without digging them in the winter for years. I thought last winter might set them back but they are doing better than ever this year. And I don't even mulch them. Granted, they are not the newest varieties, but they are also not any of the ones that I have seen listed as "hardy". They are normal looking glads with colors ranging from white to pink to striking magenta.

My gladiolus flower buds are

By Sheila-ga on July 5

My gladiolus flower buds are dying. I live in Ga, zone 8. The flower buds have turned black and died before they started blooming. Any idea? Could it be that I applied some humus fertilizer around them and watered? I bought the humus fertilizer from Walmart, at < $2 for a 25 pound bag.

Hi, I am in North Carolina,

By Linda R.


I am in North Carolina, and planted a row of Gladiolus in a front bed that receives plenty of sun. I planted about 5 - 6 inches deep as per instructions. Now that they are starting to bloom, I see that the flower step gets really wilty during the hot days. I find myself watering a lot because of this and am afraid I may be overwatering. Is the wilting normal, and should I water daily?


If the plants look healthy

By Almanac Staff on July 15

If the plants look healthy otherwise (no discolored or pale leaves, stunted growth, curled leaves, evidence of insects along the stem or under leaf or flower surfaces, etc.), then likely it is just the hot weather. Provide an inch of water per week in normal temperatures, more when it is hot. Check the soil each time you plan to water--if it is soggy, do not add more; it the top inch of the soil is dry, then provide more water. You might also try giving the glads temporary filtered shade (such as via a burlap screen) during the hottest part of the day if it is especially warm.

Hello! I planted Gladiolus in

By Linda R.


I planted Gladiolus in a flower bed that gets plenty of sun. They have grown quite well and are not starting to bloom. They are planted about 5 - 6 inches deep as per instructions. I notice that since the blooms started coming out, they get really wilty during the. Because of this, I have been watering them a lot every day. Is that necessary or is the wilting normal? I am in North Carolina, and we have some very hot days.


My lawn guy weed whacked my

By Lisa Faires

My lawn guy weed whacked my glad stalks before they bloomed. I live in central FL. Will they grow back and bloom this summer?

Glads can rebloom after

By Almanac Staff

Glads can rebloom after cutting if the corm is large enough to supply the necessary energy for another flower growth.

Thank you. These were about

By Lisa Faires

Thank you. These were about 2-3 inches in diameter. Do you think that's big enough to grow another stalk? Should I give them miracle for?

How long does it take for

By sharon rottscheit

How long does it take for glads to come when planted by seed? The seed was to be planted like radishes,, I did that,will they form a glad bulb first to take out in the fall? will they show any sign of a growth on top of the ground, or do they only form a bulb to be dug up in the fall and planted the following year?

It will take 2-3 years before

By Almanac Staff

It will take 2-3 years before they will be big enough to flower. You will see some green tops growing this year and you need to dig them up this fall if you live in a cold region. Keep them indoors over the winter months then bring outside next spring. It's recommended to start seeds in trays or pots for easier germination.

I live in Massachusetts &

By Nadine DeSimone

I live in Massachusetts & have been gardening for which seems like forever, May question is how do you boost your gladiolas to bloom? Im having a hard time this year. Open for a suggestions.... thank you

Glads need at least 6 to 8

By Almanac Staff

Glads need at least 6 to 8 hours of sun and well drained soil. Adding compost or aged manure to the soil will help the bulbs grow bigger and produce more flowers.

Yesterday (06/19/2014) I dug

By Grandma's treasures

Yesterday (06/19/2014) I dug up several of the Gladiolas that my Grandmother had set out 25-30 years ago. There were some blooms and several old blooms on the stalks. I tried to get the whole area of plants so that my chances would be better of getting a stand of Grandma's heirlooms.

Her farm was in Alabama (clay soil) and I am in Florida (sandy soil). What do I need to know about helping these plants to survive now? Prune the stalks when transplanting? Divide the corms (?) to propagate?

Any advice would be appreciated.

Before you plant the glads

By Almanac Staff

Before you plant the glads amend your sandy soil with some compost or aged manure. You can cut the flower stalks but leave all the leaves intact when transplanting. This is a good time to divide the corms. After 25-30 years in the ground you'll find that many of the corms have mulitplied.

I live in mid Atlantic. This

By June T

I live in mid Atlantic. This is my first year of planting it. Only about 65% seem to grow up now. But the biggest problem for me is some of the leaves (corm?) seem to fall down and bent as they grow taller. (And frankly, I don't see any sign of it to bloom.) Any suggestion or advice? Thanks in advance.

I live in Houston, Texas and

By KristenH

I live in Houston, Texas and planted my bulbs late february/ early march and they are doing great! They bloomed last week but the flowers on the lower part of the stalk are already withering and dying. Do I dead head them or leave them? Will they bloom again or after they all wither up, will they be done for the year? This is my first attempt at flowers altogether but so I don't know what I should be expecting. Thanks!

Usually glads have one stalk

By Almanac Staff

Usually glads have one stalk with flowers and as each flower fades you can remove them. When all the flowers have faded you can cut the stalk. Leave the leaves on the plant until they turn yellow. Sometimes a corm, if it is big enough, can send up another stalk.

I planted gladiolus for the

By Josie Wrinn

I planted gladiolus for the first time this year.I live in Georgia and it gets HOT heterosexual in the summer with very little rain.I have some that are blooming beautifully and some that are dying and one or two that has black areas at the base of the stalk.can someone tell me what the black areas are and how often I should water them with little i to no rain every week....PLEASE HELP

You need to water when the

By Almanac Staff

You need to water when the soil feels dry. Glads don't like to sit in wet ground. You may have a blight issue or corm rot. See the link below for more information about diseases.

I have a large area with

By Gail D. Smith

I have a large area with bulbs that were here when I moved in and have bloomed every year for 18 years with absolutely no attention from me. Last year I had only 11 flowering stems around the perimeters so I transplanted some . The transplants did not flower and this year I have only 6 blooming stems. Are they too crowded? They keep expanding every year.I'm in central NJ.

I live in Missouri. I have

By Proud_mom

I live in Missouri. I have never planted Gladiolus before this year. I planted approximately 20 bulbs. So far, I have 8 sprouting. Will I need to dig them up at the end of the season? Also, I do not have a basement to store them in. All I have is an attic.

If your ground freezes in the

By Almanac Staff

If your ground freezes in the winter, it is best to dig up the glads. Just keep the bulbs in a cool dry spot in the attic or in an area of your home that is not too warm during the winter months.

I don't understand this. I've

By dflower

I don't understand this. I've had these flowers for the last years. Never a problem. I never ever dig them up and they do multiply each year.

The are carefree plants. I think most people put too much emphasis on digging them up in the fall. I also plant new bulbs as late as June and they will still bloom. I live in Cincinnati Ohio and the ground does freeze here. Same thing with Lilly's and iris here. Carefree!

Hello! I live in Illinois.

By Alicia Voegele

I live in Illinois. Zone 5 and 6 I do believe. I planted Gladiouls in April (2nd to the last week of) and they are growing. The stems are long but are drooping over. They get full sun, well drained. Some stems are turning like a whitish brownish color. Does this mean they are dying? I am going to replant them in the ground when we move in June. They are in pots well drained now inside. I do set them outside in the daytime south facing where the sun comes in the most.


It sounds like your gladiolus

By Almanac Staff

It sounds like your gladiolus may have botrytis. Immediately remove the infected stem/leaves. To avoid this fungus from spreading, do not water from overhead, rather, water it at the base.

Can I plant small corms and

By Ron B

Can I plant small corms and get flowers

If the corms are tiny plant

By Almanac Staff

If the corms are tiny plant them in containers to grow bigger. It may take a couple of years before these flower.

I planted my gladiolus bulbs

By Amanhunt

I planted my gladiolus bulbs 12 inches deep before reading it should be about 6 inches. Will it still bloom properly or should I replant them?

If you just planted, we'd

By Almanac Staff

If you just planted, we'd re-set the corms 4 inches deep. Otherwise, we've never tried 12 inches so it's an experiment! 

In NY I always plant my glads

By sccallen on July 20

In NY I always plant my glads 12" at a minimum in well draining soil. They grow 6'+ tall on average and need this depth to support the plant in addition to staking support. Additionally, this protects them from the frost / freezing. At this depth I also till the upper 4 to 6" each year by hand to loosen up the soil, carefully though as I have found new bulbs a few inches above the original ones planted. Mine reproduce like rabbits ... or potatoes ... and the average new bulb size is 3 to 4" in diameter. After tending the soil in the spring, I cover with another 2-3" of mulch to keep the weeds down and the soil moist. This works for my area where we have hot and humid summer months.

Hi I live in long island Ny

By shari from long island on July 21

Hi I live in long island Ny South shore I have been very successful with my glads. I never have dug them up but the winters has been getting very cold the past few years and I was wondering if you have been digging up yours? In a bit of a debate if I should.?

very good and usefully

By piyubhakta919909528022

very good and usefully

I live in Belize, Central

By Diana Kingston

I live in Belize, Central America and I have planted Gladiolas for the first time. I planted them three to a pot and set them in my fridge since Belize is so hot all the time. They have sprouted already so how soon can I put them in the ground, and will I have to take them up after they bloom and perhaps store them in the fridge until next year or could I just leave them in the ground all year long?

I doubt you need to keep them

By Demaroge

I doubt you need to keep them in the fridge. I live in Georgia and my Gladiolas live outside all year around. It gets very hot and humid here.

I would plant them outside in an area where the soil drains well.

The corms (that is the seed) stay in the ground here in Georgia over the winter because it doesn't usually freeze. If the ground 'Hard' freezes it will kill them.

They don't like to sit it wet soil. They will rot. So, if you have a lot of rain make sure the area you plant them is not heavy clay type soil and that the area doesn't stay 'sopping wet' because it drains well.

It gets to be over 100 degrees here and my Gladiolas are in full sun most of the day. I do have to water them sometimes if it hasn't rained.

The winter weather here is generally cool with some freezing days (not long enough to freeze through the ground.) I do cover the ground above the Gladiola corms with a heavy layer of mulch after I cut back the leaves yellow. Leave the leaves alone until they yellow because they are storing energy for next year's crop.

I hope that helps you. Gladiolas are beautiful! I love to cut the flowers and show them off in a gorgeous vase.

We live in Dallas, TX area


We live in Dallas, TX area and planted the glads for the first time. We seem to be in zone 7B. Do we need to dig up the corms at the end of the season? If so when?

Hi...we live just east of

By bp3032

Hi...we live just east of Allen, TX. Last year I bought a bag of bulbs from Sam's Club. They grew 1-2 feet but never showed blooms. I thought they were dead or were a bad batch or that I did something wrong...lots of desire for flowers--2 brown thumbs :( I didn't bother digging them up. This year...they grew like crazy! Some up to 4 feet tall with HUGE blooms!! Love a plant that grows in spite of me! :) Good Luck!!

There are a couple of

By Almanac Staff

There are a couple of heirloom glads that you can leave in the ground and grown as perennials in Texas, but most gladiolus corms should be dug up after the foliage has dried in late summer or fall if you wish to save them for next year. See above information.

I just bought some Gladiolus

By Carol C

I just bought some Gladiolus bulbs at Home Depot. Is it too late to plant them in Dallas?

Hi Carol, I would plant them!

By Demaroge

Hi Carol,

I would plant them! They may need to be staked later when they are tall and heavy from the buds/blooms.

It can be really windy in TX so finding a less-windy spot in your yard would help.

If you have clay soil be sure to prepare the soil with compost, manure, top soil, bone meal; something to enrich it and loosen it. Gladiolas prefer to be well drained.

It takes about 90 days from planting until they bloom. You can plant some each week to stagger the blooms so you can enjoy them longer.

I love Gladiolas! Apparently they are an 'old' flower and aren't the 'in' thing ... buy oh my goodness... They are GORGEOUS!

I remember seeing Gladiolas

By Carol C

I remember seeing Gladiolas on my grandfather's farm in Iowa. My mother showed me how you could pull off the blooms and make a little doll. We just tilled up an area and put in miracle grow garden soil and lava sand.

Thanks so much for your information!!

In Texas, many people plant

By Almanac Staff

In Texas, many people plant gladiolus as early as mid-February but you can usually plant through the end of April. 

I have a question. I had

By Vino J.

I have a question.
I had planted my in early February.
There coming up now. but, there just two leaves that there about sin inches or more and no stem. That has the flower. How much longer does the stem start to appear. By the way I live in Irving TX A town between Dallas/FTWorth

Thank You

Vino, I wonder how your Glads

By Demaroge


I wonder how your Glads are looking now? Mine have grown a lot in the last week! I sprinkled them with some fertilizer and I really think they like it!

It may sound crazy - but I am looking forward to the fall so I can dig them up and separate out the new corms! I will take that opportunity to really improve the soil as well.

We have Georgia 'Red Clay.' I am planning to add in manure, bonemeal and maybe some compost soil to enrich the beds. I am hoping for a 'bumper' crop of Glads next year!

I too am growing

By lsb

I too am growing gladiolus.and have been for 5 years. I live in arlingron tx. you will need some patient to see your first flower on the glads. the stem itself will reach about 2 to 3 ft before you begin to see the actual stem for the flower shoots. you shouls see then bloom in about may or early summer.enjoy!

I read it takes approximately

By Demaroge

I read it takes approximately 90 days. I think it is in the description at the top.

Also ~ If I want the baby

By Demaroge

Also ~ If I want the baby corms to multiply ... When should I dig up the bulbs to separate the baby corms, spread them about, and replant them?

I planted Gladiolas and this

By Demaroge

I planted Gladiolas and this is their third blooming year. I expected them to multiply ... but there are fewer than last year all ready. I live in GA so I don't have to lift them. It seems odd to me.

Should I dig them up and see if there are any baby corms? If there are baby corms ... should I move them around? Should I add peat moss or other items to the soil to loosen it up or feed?

I had Glads when I lived in the Pacific Northwest and they just do great on their own. So I thought for sure they would love it here!

Wait to dig the gladiolas

By Almanac Staff

Wait to dig the gladiolas until they have bloomed and the leaves start turning yellow. Fertilize your gladiolus three times a year for bigger corms, when planting, when the stems are about six inches tall, and when the flowers begin to fade.
Each glad will produce one or two large corms and several small corms. Break the new corms off the old corms and plant the ones that are larger than 1/4 inch in diameter. These may bloom the first year. Add some compost or aged manure to the soil. Plant the tiny corms in pots until they are big enough to go into the garden.

I live in florida, and i was

By Rachel f.

I live in florida, and i was wondering if i have to dig up the gladiolus before every winter it usually doesnt freeze around here.

You only need to dig up glads

By Almanac Staff

You only need to dig up glads in the north of Florida where you get frost. According to University of Florida Extension, corms should be dug up, dried and stored at 40 to 50 degrees F for next season when foliage begins to yellow.

I live in Lubbock, TX, Zone

By fa4swa

I live in Lubbock, TX, Zone 7B. When flowers, such as Glads, say full sun, how much heat can they usually stand? I realize that it probably a difficult question, but my west facing garden would be a beautiful place for my Glads but I'm afraid the heat from the brick would be too hot. Please advise. I am new at Glads in Texas. Beautiful in Florida but.......

Don’t confuse sunlight with

By Almanac Staff

Don’t confuse sunlight with heat. Gladiolus need about 6 hours of direct sunlight. Assuming you’ve got that and other proper conditions—rich, well-draining soil into which you set the corms 4 to 5 inches deep and 5 to 6 inches apart, water well when necessary, and stake against the wind, if necessary—you should have no problem.
A west-facing spot does not typically get the direct sunlight of a south-facing spot, and so is usually not as hot, certainly not for as long as a south face might be. Be sure that your plants get the amount of sunlight they need.

Why do my glads grow well

By art draves

Why do my glads grow well with buds but do not blossom, they turn brown and dry up.

i have 3 colours of glads


i have 3 colours of glads under my living room window facing west. the 6ft purple variety usually blooms first followed by the 4ft pinks and finally the 4ft orangey yellows. I didnt realise they grew quite so tall & would fall over but staking is difficult as the soil near the house is quite shallow. So i have resorted to propping the base of the stalks with bits of broken bricks. It works for me ! =)

Kindly advise how to speed up

By Jamil

Kindly advise how to speed up blossoming.

I live in the Sikkim

By Minla

I live in the Sikkim Himalayas. I planted around 30 corms of gladsearly this year in February. They ALL gave me some pretty lush foliage but only 13 flowering stems. "Lots of sunshine" is a bit of a problem because March onwards we have lots of rain and very little sun. they did give me some really pretty blooms though. What can I do to get all y corms to flower? and is there any way I can know what colour the flowers will be from the bulbs? Most of the bulbs I have are all purchased from the local gardener.

Yes an option here would to

By Philip241

Yes an option here would to plant in the dry season when you do have lots of UV and sunlight. As they take three months to bloom you need to time it correctly. Start planting one or two month before the beginning of the dry season. This will give you plenty of sunshine. Gladiolus can be planted at anytime in warmer climates in yours you need to time it so its not overcast all the time or too cold. Cool weather is fine around about 23- 25 is optimal for their growth and flowering in fact. Find those optimum months of sunshine and you are away. (:

Will gladiolus grow inside

By Yusuf muhammad

Will gladiolus grow inside during winter months?

I've been replanting my glads

By Dolores in SD

I've been replanting my glads for years and have always had really good luck with them. This year the flowers formed and started to open but when I would bring them in they didn't open further. Could my bulbs be diseased? I'm wondering if I should bother digging the bulbs up this fall or just purchase new bulbs in the spring and start over. They are planted on different ground each year although the same side of the garden. Do I need an entirely new spot or is this enough rotation? Thank you for your help.

this is my first time at

By desman

this is my first time at growing Gladioli I have deep red purple with freckles of white on the bottom petal they are so beautiful and now 2 whites are flowering so I'm hooked.. now I know the beauty of the flower I'm looking to next year..... Desman Rare.. port lincoln .. south australia 5606

If the flowers aren't

By Almanac Staff

If the flowers aren't opening, it's probably thrips, tiny insects that overwinter on stored corms. Those affected may not survive at this point.
When you store your corms over the winter, make sure the temperatures are between 35° and 40° F so that thrips will not survive.
Try dusting stored corms with carbaryl, shaking them in a bag with a small amount of the dust (just 2 teaspoons per hundred corms).

I have gladiolus. I live in

By MichelleNR

I have gladiolus. I live in western Maryland, my gladiolus were planted by the person who lived here before me and I've never dug them up. Can I cut the leaves back in fall? The jumbles of leaves everywhere look messy.

It is advised to dig them up

By Almanac Staff

It is advised to dig them up in your area or the winter will eventually do them in. See this page for more information.

Hi, I want to know when is

By lenewoo

Hi, I want to know when is the best dates to dig up gladiolus. I live in Unicoi, Tn. That is in East , Tn. I am wanting to dig them up. But I am not sure when. I know in the fall.

Howdy neighbor, I live near

By zigzagolis

Howdy neighbor, I live near Alcoa, about 128 road miles from you, but much closer as the crow flies. I am in Plant Hardiness Zone 7a and the average first frost for me is Nov 1-10, but since Unicoi is in Zone 6b yours seems to come earlier, around Oct 11-20. After the glads foliage turns brown and becomes dormant, but before your first frost, you need to get those glads (and any other tender roots such as cannas, elephant ears and caladiums) dug up, dried out, packed away in something like peat moss and stored in the basement. Set them back out after the last frost, which for Unicoi is about May 1-10. Last winter (2012-2013) I left my glads in the grown with the intention of sowing wildflowers in that spot in the spring. I counted on the glads just dying and going away, but to my surprise the arose and bloom the following summer. What worked for me may not work for you. Unicoi is pretty close to Roane Mtn while my home is across the road from Ft Loudon Lake backwaters ... quite different topographies. Good luck, lenewoo. Warren

PS The first frost/last frost info for Unicoi came from

You are correct to dig up

By Almanac Staff

You are correct to dig up glad in the fall if the ground in your yard freezes. There are some folks in your area who will leave them in, but dig them up if you do not want to  take risks.  Lift any time that you are 4 weeks past the bloom but before the tops turn brown. Cut the tops off the bulb and dry in a warm well ventilated place for a few weeks.

Hi, I'm karel I live in

By jazmin

Hi, I'm karel I live in wichita, kansas and right know it's october I was wondering if I should plant my gladiolus right know or wait for next feburary to plant them since I am a new begginer at this planting thing an dwould really like to try it out.Since my favorite flowers are gladiolus.

Read the planting information

By Almanac Staff

Read the planting information on this page (above) about when to plant gladiolus.

I live in southern MI and was

By karen baisch

I live in southern MI and was wondering what happens if I do not dig them up and just leave them in the ground during the winter. I do trim the corm off in autumn before frost and freeze. Will they come back up in the spring? Will they be ok during the winter?

In your zone (6): unless they

By Almanac Staff

In your zone (6): unless they are an especially hardy variety, the average glad will freeze and won't survive. If they do, they'll be spindly and small and winter will eventually do them in. Dig 'em up! See this page for instructions.

I live in Nova Scotia. In

By Nan Cassidy

I live in Nova Scotia. In the spring I planted 50 glads. Most of them grew leaves that look healthy and a few produced buds but only one produced flowers and they were small, brownish and deformed. They were in full sun, I watered them regularly. My Dad grew glads for years and they were trouble free - what have I done wrong?

Hi Nan, I also live in NS and

By Joyce Scott1

Hi Nan, I also live in NS and have had the same issue in the past, I think from the heavy clay in the natural soil here. Any bulb hates too much water and clay retains alot of water. I replaced our soil with triple mix and haven't had this issue since. :) Good luck.

Gladiolus are late

By Almanac Staff

Gladiolus are late bloomers--often September.  Are the stalks thick when you run your hands up them; if so, that a good sign. Are they getting lots of sun and warmth? Is the soil nice and light and not too compact or heavy? Do you see insect damage? There are some diseases that would cause glads not to bloom. It always helps to apply fungicidal sprays during the summer to protect your glads; speak to your garden store.

what are the buds that appear

By george ball

what are the buds that appear after the flower drops ?

The buds that appear after

By Jennifer Ruff

The buds that appear after the flower drops of are little seed pods if you leave them on there wait until they turn brown then take them off. In Feb plant the seeds in side and wait until they are a few inches tall and there is no danger of frost then plant out side. They will take 2-3 years before they will flower.

I pulled up some glad bulbs

By claire hammitt

I pulled up some glad bulbs that had been in the ground for several years. Some bloomed, some did not. Some of the bulbs have small white "attachments" on the bulbs. Are these new bulbs or a problem. How do I handle them? I want to transplant the bulbs. Thanks,CLaire

New gladiolus corms form

By Almanac Staff

New gladiolus corms form immediately above the
old corm. You may see small corms called cormels form around the base of the new corm. Follow our instructions on this page for digging up the glads.

We moved to Costa Rica, the

By Lorraine lafferty

We moved to Costa Rica, the glads are big and beautiful, can I leave them in year round or should I dig them up after they bloom, also do they bloom more than once ?

I live in zone 6 and wandered

By Don Hagenberger

I live in zone 6 and wandered if I have to pull my Glads. They are planted on the south side,against the home, and in full sun.

According to the U.S.

By Almanac Staff

According to the U.S. Department of Agriculture, you do want to lift gladiolus in zones 7 and below. This is our recommendation, too. However, we've had readers in zones 7 and 6 who did not lift them and found that their glads returned and bloomed! It really depends on how much insulating snow cover they get and how warm the winter is. (This year, our prediction is colder-than-normal.) If you don't lift them, be sure to use lots of fluffy mulch such as straw, hay, oak leaves, etc.

After moving into our new

By Donna Birge

After moving into our new home and working in my garden, I discovered a group of glads suffering to grow in a very shady area under a big tree. They had plenty of green but struggled to bloom (just got some bud-looking flowers on them.) I dug them up and want to replant them, but it is July; we are in zone 10 (so Cal.) I have prepared a bed for them, but don't know if I need to store them like in other zones or can I plant them? Store them? Please advise and thanks in advance. Donna

Plant the glads now. In a

By Almanac Staff

Plant the glads now. In a zone 10 garden you don't need to dig and store the corms in the fall. They will come up every year.

This year our Glads are

By Sue Gardner

This year our Glads are terrible The stem is all brown spotted and goes right up to the flower part Whats wrong We have a whole garden full of Glads

Your glads may suffer from a

By Almanac Staff

Your glads may suffer from a fungus called Botrytis gladiolorum. Have you had a wet warm summer?
To treat this  fungus you may need to use a fungicide and discard any corms that are infected. It's also important to plant any new corms in a different area of you garden.

Hi in warm and wet summer

By Philip241

Hi in warm and wet summer type climates you could try the following that works. Never let the bulb come in contact with organic material compost or organic fert like bone meal. When this rots it damages the bulbs. Instead dig your beds and add the organics and fert then plant in a six inch or more layer of pure heavy garden soil on top of this., sandy soil is fine too just nothing that can break down. This keeps the bulbs clean and they won't rot. Even a layer of crumbled clay will work? In the growing season it's not so much moisture that is the problem but fungus and pathogens in rotting material. In the wild these grow in seasonally wet areas often in heavy soil however it dries up bone dry during the cool season. So out of growing season keep the soil as dry as possible don't water by mistake they need a good long dry season. Wet and cold soil will cause rot and pathogens making for diseased shoots in the wet season as will rotting organic material in contact with the bulb in the growing season.

I live in Indianapolis (zone

By Patrick Frawley

I live in Indianapolis (zone 6a). I have 300 glads that bloom every year. I always dig up and overwinter the corms in beds with northern exposure. Those with southern exposure usually come back on their own in the ground. I just purchased a deeply discounted bag of corms (late July). They appear to be in good condition. I know it is too late to plant them. Will they be ok next spring if I just put them in the refrigerator NOW, much like I do in early November with those in my garden?

The corms should be fine for

By Almanac Staff

The corms should be fine for next year. Just store them in a dark cool place.

I live in west central

By bonita henneman

I live in west central Florida. When should I plant? How far down should I cut the stalk when I want to harvest the flowers?

Yes leave at least three

By Philip241

Yes leave at least three leaves, this will ensure the plant continues to grow roots and feed the bulb to make a nice plump one for next year. If you want a very long stem on your cut flowers this will mean you set back the bulb considerably and need to buy more for next year.

You can plant glads any time

By Almanac Staff

You can plant glads any time during the year in Florida. Cut the glad stem as long as you want for your vase but leave the leaves on the plant.

It is almost August here in

By Mountain1010

It is almost August here in Central PA - Zone 6 - and I still haven't had time to put my glads in the ground. They are still in the basement from being dug up last fall. Is it too late for this year? Will they survive another winter in the basement and perhaps be fine next year?

It is a bit late to plant the

By Almanac Staff

It is a bit late to plant the bulbs now. Save them for next year. Check the bulbs to make sure they are nice and dry. Throw away any that are soft or moldy.

I live in zone 8/9. My Glads

By Suzan Hislop

I live in zone 8/9. My Glads were beautiful and very tall. They bloomed early summer and now are just dying stalks. Should I cut the stalks now? Or should I pull the corms and put them in the fridge till next spring?

I live in zone 7 and never

By LuAnn

I live in zone 7 and never lift my glads. Yes, you can cut the stalks back now if you wish. I wouldn't bother lifting them at all, but if you insist, wait until fall. They might actually fool you and rebloom this season.

If I cower bulbs from frost

By iqbal

If I cower bulbs from frost by putting green house can be safe then ?

We're not sure what material

By Almanac Staff

We're not sure what material you are considering as a greenhouse sheet. Ideally, a breathable fabric is best, such as burlap, bedsheets, row covers, newspapers, a light blanket, etc.; remove the fabric during the day when temperatures warm up enough (most fabrics don't allow enough light in, so you'll need to remove them during daytime.)
 You can use clear, flexible plastic, but it will encourage condensation inside, which might freeze during the night, and any plant part that is touching it (use stakes etc. to prop up the plastic so that it doesn't touch the plants); you must remember to remove it during the day or temperatures inside can get too hot for the plant. The same goes for a cold frame or similar--open it periodically during the day to allow air circulation and condensation to escape.
Frost protection is needed for an unexpected late spring frost, or an unexpected early fall frost. However, if you live in USDA hardiness plant zones 6 and colder, you should dig up the corms in fall for winter storage; gardeners in Zones 7 or warmer can instead cover the area with a thick layer of straw or similar to provide winter protection, leaving the corms in the soil over winter.

my plants come up every

By Sheila Gaysek

my plants come up every year...leaves are great, but the flowers are small...look deformed..what can I do

Hmm. There are insects, such

By Almanac Staff

Hmm. There are insects, such as thrips, or diseases that can cause deformed flowers, but usually there are symptoms on the leaves as well. Do you think it might be a nutrient deficiency, such as calcium? For more information, you might be interested in this report:
It says that a calcium deficiency, which doesn't often show up in leaves unless severe, can affect the flowers, and in certain cases, the petals may curve in, and there might be water-soaked spots on them. The flower spikes may look twisted and, if used as a cut flower in a vase, may fall over once all flowers on the spike are in bloom. If you think this is the case, you might try adding a little ground limestone to the soil.

Our glads are flowering but

By Sue Gardner

Our glads are flowering but there is brown on the flowers edge
Its been very hot in the 90s and humid is it from the heat?

Although there are several

By Almanac Staff

Although there are several reasons for browning flowers (including pests and diseases), if the edges are brittle, not mushy, then our best guess is that it is likely heat damage--especially if the leaves are showing similar symptoms. (Symptoms of heat stress can appear in several ways, depending on the plant, growth stage, and circumstance.) In high heat, water more than the average 1 inch per week. Mulch will help keep the soil moist. You might provide a temporary screen to filter out some direct sun during excessive heat. Some varieties of glads are more heat tolerant than others.

VERY CONCERNED!!!!!! with our

By Cisma

VERY CONCERNED!!!!!! with our gladiola crop this year. We have 150 bulbs planted and it has been very rainy here in Indiana. I was worried about the amount of time it was taking them to bloom, well that is the least of my worries now. I have 5 gladiola blooms that look horrible. After investigation, I noticed microscopic black insects and yellow larvae on the blooms and stalks. HELP!!!! I don't want to lose my whole crop!!!!!!!

Although without a photo we

By Almanac Staff

Although without a photo we can't be positive, it sounds like you might have an infestation of gladiolus thrips, which is a common pest of this flower, and can cause serious damage if not controlled. These are tiny black insects with gray wings; the nymphs are yellowish. They suck sap from leaves, causing silvery speckling, and can also damage the flowers. They can overwinter in the corms. For a photo of the larvae, see:

Of the adults, see:

For control, in light infestations, you can hang blue or yellow sticky traps--these lure the adults. You can also knock off the insects by spraying the plants with water from a hose (morning is best)--be sure to set it on fine spray, and do the leaf undersides; repeat a few times each day. Several beneficial insects help to control thrips; you can order these, such as green lacewings, from mailorder sources.

When storing the corms in winter, keep them at about 40 degrees F, which will kill any thrips (do not freeze the corms).

For heavy infestations, you might have to resort to chemicals. Ask your local garden nursery about suggested controls, such as insecticidal soap (in general, this can be applied about every 3 days for 2 weeks, but follow manufacturer's directions). Pyrethrin (pyrethrum) is used for more serious infestations.

For more information, you might be interested in this publication from the University of Florida:

Good luck!

I've been growing glads for

By Christina L

I've been growing glads for years and have had nothing less than the usual pests(white flies, tiny catepillars), but this year some kind a pest bit the flower at the tiny stem portion of the flower, and the flowers were left behind in the dirt. This happened with one flower at first, and then the next day about 5 more flowers were gone, eventually all flowers were gone, including buds! The leaves were bent and I saw tiny scratch marks(like a cat's claws) on them. I sprayed the plant and what was left of the buds, but they all vanished. This particular glad had twins and the pest was able to chew the stems, so the twins vanished, too.
My garden is fenced with bamboo and each plant has mini-wire mesh circular fortress around the bottom to prevent chewing of leaves at the base(a method learned from past damage). Never saw any catepillars or larvae in the dirt. We have squirrels, gophers and mice; no deer. I found ants the first day, sprayed them and never saw them again. Squirrels are too heavy to climb the stem without noticeable damage, so I omitted them from being the possible pests; the main stem is very tall(5 feet+), and the highest stolen bud was on the very thin green tip of the stem. I thought mice might be too heavy, as well...but they are my best guess! I read somewhere to place foil discs around the stems, so I've done that for my last 2 glads that are flowering. The green leaf structures holding the buds and flowers were somewhat frayed. Have you heard of mice climbing glads and eating them all the way to the top? Are there any other pests that might do this type of damage?

Hmm. We're stumped! Rabbits

By Almanac Staff

Hmm. We're stumped! Rabbits can sometimes clip flowers or buds off and just leave them, but at 5 feet, that's unlikely without bending the plant; they normally feed up to about 2 feet high. Do you think it might be a bird? We haven't come across any gladiolus pest that would do this at that height (without major damage). Voles aren't good climbers, but can sometimes climb trees a tiny bit if there are low-hanging branches. Mice are good climbers, but their damage in the garden is usually just a few inches aboveground or belowground (although, there are some mice, such as the harvest mouse in England, that can use their tail to help climb tall stems of plants such as cereal grains or reeds). Squirrels can do the damage you describe--do you think a young squirrel, or, if they are in your area, a smaller type of squirrel such as a red squirrel, would be able to climb the gladiolus without bending it too much? Are there chipmunks in your area? Perhaps you can call your county's Cooperative Extension (if you are in the United States); they would know what pests are likely in your area, and perhaps can suggest some possibilities. For contact information, see: Good luck!

I live in Indianapolis,

By Karen Pickens

I live in Indianapolis, Indiana. How do I know what "zone" I live in?

Use our search above and type

By Almanac Staff

Use our search above and type in Plant Hardiness Zones.

I live in zone 6(b) and have

By Anella

I live in zone 6(b) and have an established glad bed. I want to move them to another garden area. When is the best time to move them and what else should I consider?

In zone 6, glads are not

By Almanac Staff

In zone 6, glads are not winter-hardy, so you'll need to dig them up as described on this page and replant in the spring.

I live in zone 5 (I think,

By Kharisma Kate

I live in zone 5 (I think, east-central Iowa). This year is the 4th blooming season for my glads. The first year, a friend told me when I planted them that before the first frost to cut the stalks and dig them up for winter storage. I forgot, then it snowed and I just left them in the ground, well covered with the seasons mulch. The next summer, to my surprise, the glads poked out of the ground and grew big and strong and bloomed beatifully (though I didnt realize until now to keep them blooming to oull out the dead petals)!! Since then, I do nothing with the glads in the fall, just let them go naturally. In the spring I gently remove dead stalks, and watch again as my glads grow strong and beautifully!! Is it possible that because I have the glads planted on the south side of my house they do so well? Also, when I originally planted them, I didnt realize their height and planted in haphazard way. When is the best time to move them into a better formation, if you will, such as closer to the house as a backdrop for my other flower (day lilies and tiger lilies)? Thanks for your response!!

My daughter-in-law planted

By Debansky

My daughter-in-law planted Glads in NE PA (zone 4-5) a few years ago and has never dug them They are blooming beautifully. They burn wood in the basement and the glads are planted on the other side of the wall. It is also a W exposure. Crazy I know but it is working. She asked me when would be the best time to split the bulbs. I gave up on glads years ago and so am no help. Any suggestions?

It is possible that the south

By Almanac Staff

It is possible that the south side of the house has created a microclimate that is warm enough for them to survive the winter. Also, you might have a variety that is a little more cold tolerant than others. You might add some winter protection, such as a thick layer of straw in fall, just in case, if you prefer not to dig them up for winter storage. As to when to transplant, the best time is in early spring.

I planted last year. Noticed


I planted last year. Noticed a growing bloom. Then I noticed that something had eaten the tops off. I have deers and rabbits in my back yard. How can I keep them away ? I would love to see the finished product of planting my gladiolus.

Sounds like deer--who do like

By Almanac Staff

Sounds like deer--who do like to eat the tops off glads. See our deer page for ideas on how to deter:

My Gladiolus bloomed good and

By Destinee

My Gladiolus bloomed good and everything. But when they bloomed, the flower bent over all the way. I tried placing it up right, but it came fully out! It wasnt yellow, it just came right out for no reason. Then I noticed another one was bending. So I tried placing it up right, I heard a tiny snap, and I put dirt on it. The next day it started yellowing! All my other Gladiolus I placed upright with dirt are yellowing and im afraid it will end up like the first one. Please help!

Stake glads first thing to

By Almanac Staff

Stake glads first thing to avoid the likelihood of damaging their roots with the stakes. Otherwise, they will easily blow over and snap. Once they die, they will yellow. If plants are yellow or stunted before their natural end, there is a virus infection and there is no cure; you need to pull them out.

I've been having the problem!

By Kendalle

I've been having the problem! I read that tall varieties need staking or a grid with stakes and string. I'm hoping mine will come back next year and I can catch them before they start to bend.

This is my 1st attempt at

By Jane Alderman

This is my 1st attempt at growing Glads.... they were planted at about 6-8 inches depth.. they have beautiful TALL leaves, but no sign of blooms.... what should I do???

Hang in there. Glads bloom in

By Almanac Staff

Hang in there. Glads bloom in mid- to -late summer. We hope it's just a matter of time.

Mine took a full year before

By Luv2Garden

Mine took a full year before they bloomed. I planted thm last year for the first time and had big tall shoots but no blooms. This year they finally did bloom and they were beautiful. I did have to stake them though. I was wondering if they would continue to bloom but they haven't.

Help! My gladious are doing

By GladsLover

Help! My gladious are doing well, up to last week. They were growing up beautifully, as I opened up a new area in my garden for them this early spring. Got them planted in good mircle grow soil, and all green and well. 2 weeks ago, I notice some yellowing of one of stalks' leaves, and a few days go by, the whole stalk went yellow, dried up and died. I pull it out. Thought it was just lacking water. Out of the 20 planted in the same location, this is just one that died. I didn't think much of it. Since then, I've watered all the rest of the glads at least once per day, and everything looks good. Then this morning, I notice some other glads are yellowing too. They're getting plenty of sun and water. Yellowing?! I don't know why! Virus? How do I know? What should I treat the soil with so that the rest of the corms planted don't get infected,too? I have tomatoes and other veggies planted nearby and don't want to use dangerous pesticides on the soil.

Any help appreciated. Thanks in advance.

Yellowing leaves could

By Almanac Staff

Yellowing leaves could indicate several things, from overwatering to pests or diseases. Glads like it moist, but not waterlogged; provide about 1 inch of water per week and make sure the soil is well-drained.

Dry rot is a fungal disease that causes corky, dry, brown or black spots on corms; leaves may show black fungi spots at the bases; red-brown lesions may appear on leaves. The plants may turn yellow and die early. With this disease, destroy infected plants and replant next year in a different area that is well-drained; harvest corms in fall in dry weather. With several diseases, it is best not to plant in the same area the next time, because the new plants might contract the disease if it lives in the soil.

Check for signs of insects, under leaves or in the areas where the leaves attached to the main stem. Mites can cause yellowing leaves as they feed on plant juices.

To better diagnose the problem, you might want to bring in a sample to a local nursery or your county's Cooperative Extension. For the Cooperative Extension information for your area, see:

Hi Can I use Peat Moss or a

By severeT

Hi Can I use Peat Moss or a Lawn Fertilizer when planting my Gladiolus Bubs? Thank you

Add organic materials such as

By Almanac Staff

Add organic materials such as compost and peatmoss when planting glads. Aged cow manure is also beneficial. A 5-10-5 fertilizer can also me used.

I usally have good luck with

By Robert Cyr

I usally have good luck with my glads.I put a small pile of bone meal under each corm,when planting,but wonder if there is some other fertilizer I can use to make corms grow bigger for the next year?

Add compost or aged cow

By Almanac Staff

Add compost or aged cow manure to the soil.

My glads came up and growth

By Barb Lawson

My glads came up and growth was about 3" above ground. The person trimming, weed whipped them in error to about 1". What can I, should I do, if anything. BIG MISTAKE!

This hasn't happened to us

By Almanac Staff

This hasn't happened to us but it should be OK. As long as the top of the corm and growing point is intact, we hope your glads will keep growing!

I will be receiving about 50

By Cristina Swiderski

I will be receiving about 50 bulbs in a few days. I live in zone 8. Is it too late to plant them?

In your area, gladiolus bulbs

By Almanac Staff

In your area, gladiolus bulbs are planted mid-February until the last of April--so it's just past the traditional planting season. However, you could try the glads and see how it goes. Make sure you feed them for blooms--and stake for Texas winds!

In was given some gladiolus

By Ran

In was given some gladiolus bulbs and they told me they did good in shade. I planted them along my deck under a late tree, they're coming up now pretty quickly but they won't get any direct sun, should I dig up and move or will the filtered sunlight be ok for them?

They will grow in part shade

By Almanac Staff

They will grow in part shade but may grow tall and require staking. Dig the bulbs in the fall and plant them in a sunny location for better blooms.

I planted about 300 Gladiolus

By FrogLegs77

I planted about 300 Gladiolus corms in the last year. Last year they did great in blooming, this year, they start to bloom, then they dry-up, what gives. I have had only 4 plants bloom, the rest have dried up. I've kept the soil moist.

I'm having the same problem!

By Micha

I'm having the same problem! Would love advice - this is my first season with glads in bloom.

Can I plant glads among a

By Sacto Steve

Can I plant glads among a rose bed? Are they compatible?

I planted several with pink

By Mari Alexander

I planted several with pink knockout roses and here in Texas they are starting to bloom! Both the Glads and the roses are healthy and blooming.

I planted glad bulb last

By denise gerardi

I planted glad bulb last year. Due to my health, I did not take up the bulbs. This spring I have all the bulbs growing again, and they have multiple shoots (up to seven per bulb) coming up. I don't know what to do with all the shoots. Leave them, thin them or...

My neighbor has what appears

By Cheryl Laurent

My neighbor has what appears to be glads coming up in her flower bed, she hasn't ever planted any but I have. Is there anyway they could have migrated to her bed? We're baffled.

The bulbs may have been moved

By JER12

The bulbs may have been moved from your garden to hers by squirrels or chipmunks. I have watched the critters relocate bulbs at my house.

Hmmm..Glads grow from planted

By Almanac Staff

Hmmm..Glads grow from planted corms (bulb-like structures) that are intentionally planted. Most glads do not come back north of zone 8 because they are not winter-hardy.
Update: Clearly, we are hearing other readers mention that their glads are coming back in zones 7, 6 and even 5.
The reason? Perhaps this change is due to shorter, warmer winters. The ground just isn't freezing as deeply. Other factors might be: heavy mulching in wintertime, deeper planting, and good snow cover. The only way to find out? Leave some glads in the ground and see what happens in your area!

I live in z5 in michigan and

By Abigail Small

I live in z5 in michigan and planted glads 5 years ago. I've never dug them up for the winter and they have become prolific bloomers. I tried digging them up to relocate to my sunnier garden so some of the really small corms have come up. There are now almost 20 plants that should start blooming last year. More light has encouraged taller plants and more blooms.

We live in Zone 7 and my

By Priscilla

We live in Zone 7 and my neighbor has Glads growing in her front yard, she is not a gardener, never tends to them, no weeding or fertilizer and they come back every year.

I remember an aunt who had

By Apoteke

I remember an aunt who had rows of beautiful glads every summer. Every fall she dug them up and every spring she replanted. But I remember her soaking them before she replanted, and I seem to remember my mother saying lye water. I have some stored glad corms, do I need to soak them before re planting?

Soaking corms is a common way

By Almanac Staff

Soaking corms is a common way to control thrips, a challenging pest. As they go into storage, soak for 6 hours in a mixture of 4 teaspoons Lysol ® or other disinfectant and one gallon of water. Allow corms to dry before storing them.

My Glads are in full bloom

By Suzan Hislop

My Glads are in full bloom and very beautiful, here in south Texas. Question: Will they continue to produce blooms if I cut the flowers for vases? My plants are currently about 3-1/2 feet tall. I would hate to cut the flowers and have a bare flower bed.

Gladioli usually bloom once a

By Almanac Staff

Gladioli usually bloom once a year. Cut the flower spikes when they have one, two, or possibly three flowers open; the rest will open in order, up the spike. Allow at least four leaves to remain on the plant if you wish to re-use the corms. Then let your plant die back naturally, as it needs to make next year's flower before dying back this year. If you would like continuous flowers, plant more corms subsequently and that way they will keep coming!

How long can the bulbs be stored?

By Anonymous

Can they be stored in a refrigerator?
I don't have a well ventilated room of 35-45 temperature, where else can I store them?
Can I store them for more then a year without planting them? How long will they keep?

A refrigerator is too cold

By Almanac Staff

A refrigerator is too cold for the bulbs. If the bulbs are firm and dry you can put them in a paper bag and keep them in your coldest room. Check them regularly for soft spots or rot. If a bulb is soft discard it. They should be OK for a year.

Moved Gladadiolus from pots to ground

By Anonymous

3 days back I moved my 33 glads from pots to ground and now leaves are turning yellow. Pots got morning sun but now in ground they get full sun. I am worried and I don't want to loose my Glads. Shall I move them back into pot? Any advice. I leave in Walnut creek , Ca

Transplanting gladiolus

By Anonymous

I started many bulbs in pots. They are doing well and I would like to transplant them, but
we can get light frost through June 10th here. Is it OK to transplant them now or do I need to wait until all danger of frost is past?


By Anonymous

I live in Lisbon, Me., what zone am I in?

You are in USDA hardiness

By Almanac Staff

You are in USDA hardiness Zone 5b.

How long from planting to blooming?

By Anonymous

My wedding is Sept 7th and I want to use my glads as cut flowers for the wedding. When should I plant my bulbs?

How long do flowers last?

By Anonymous

Do the flowers last for days or weeks? As I stated earlier, I'm trying to have them in full bloom for Sept 7th. If I plant now that is 112 days, so I'm afraid they will be done before the wedding. Thanks for your input. It's a challenge to have all of the flowers in full bloom at the right time! :)

I might have a solution to

By Mac in Montreal

I might have a solution to your problem. check online to see what the average time to bloom for your variates (usually 90 days avg). Then divide your bulbs into 3 and plant 7-10 days apart starting at 85 days prior lets say. That way you won't have all of them bloom at the same time but you'll be assured that you will have some of them at the peak of their blooms.
Another solution is to plant some of them at different locations (ie:south, west, etc) so that the maturity dates will differ if you plant them at the same time.
Hope this helps! ;-)

You can plant them now if the

By Anonymous

You can plant them now if the ground is warm. It can take 3 mos. For them to bloom into flowers.

Storing bulbs

By Anonymous

I know I have to dig my bulbs this fall, but not sure how to store them. My basement is heated, and the garage is VERY cold.

What to plant with glads

By Anonymous

What are good choices of other blooming plants or even showy plants to plant with glads to highlight all in the garden? Annuals and/or .

There are lots of daisy-type

By Demaroge

There are lots of daisy-type flowers that grow into a low bush with lots of blooms all summer. In Georgia I've seen both the 'traditional' yellow and white daisies but also some lovely purple varieties as well. I am going to get some this weekend for the same purpose ... to hide the wilting greenery after the gorgeous Glad blooms are gone.

I have asian lilies planted

By Abigail Small

I have asian lilies planted in front of my glads. They grow half the size and bloom while the glads grow to bloom. I also have a couple of rose bushes including a JFK rose bush. Daylilies are also a good option. They're blooms will be in full swing just before the glads begin to bloom.

Gladioli start

By Anonymous

I have just planted 20 gladioli bulbs last week i.e. on 29th April, when will the shoots start showing? I am in Atlanta Ga area.

Usually it takes about 3 to 6

By Almanac Staff

Usually it takes about 3 to 6 weeks before you see signs of the first shoots.


By Anonymous

I planted my corms almost a month ago, and haven't seen anything. Should I have seen something by now? I live in zone 7.

zone 7 don't grow gladiolous

By Anonymous

zone 7 don't grow gladiolous

Can I plant Gladiolas in Atlanta GA in May?

By Anonymous

I bought a bag of 70 gladiolas from BJ's wholesale club because they were really inexpensive and I got the gardening bug this year. Can I plant them the first week in May and have them bloom by the end of summer or should I store them per your earlier posts and wait to plant before the first frost? If I can plant them, should I stagger planting them so I have blooms throughout the summer?

Now is a good time to plant

By Almanac Staff

Now is a good time to plant bulbs for summer bloom. It's a good idea to stagger the planting to prolong the bloom time. 70 glads will make your garden smile!!

Can I transplant while blooming.

By Anonymous

I live in East TX. I found some glads in the woods behind my house. They are full bloom right now. When is the best time to dig them up to move? Is it ok now, or should I wait til the blooms fall off.

Transplant advice

By Anonymous

I planted glads in a few spots last year they were beautiful! I decided to get rid of two of the flower beds I would like to move the corms, but I'm not sure if I can right now it's the end of April, in massachusetts south of boston we have had a cold winter and spring this year, there has been no growth yet. I have friends who leave theirs in the ground and they come back each year so I left mine. I'm just asking if I can try to move them or is it a bad time of year to do so

You can move them now. Just

By Almanac Staff

You can move them now. Just be careful when you lift them so that you don't damage the corms.

No flowers

By Anonymous

I planted the bulbs last year and they all came up with thin leaves, which in time just fell over - no flower stalks came up at all. They all came up again this year, but once again, it's just the leaves, no hint of a flower stalk again. What's wrong?

If your glads are close to a

By Almanac Staff

If your glads are close to a lawn they may have been getting too much nitrogen from lawn fertilizers. Nitrogen promotes leaf growth. Add bone meal to the soil and in a few weeks add a bloom booster fertilizer. Also make sure that the bulbs are not planted too deep in the soil.

what zone am i?

By Anonymous

i live in utah what zone is that?

Depends on where in Utah

By Anonymous

Utah varies depending on which part you live in. It ranges from 7B-7A-6B

should I cover ?

By Anonymous

It's April 18th here in Missouri, & I have a lot of glads coming up, but its suppose to be near freezing tonight, should I cover them ..........

Glads should be lifted in

By Almanac Staff

Glads should be lifted in places that freeze (zone 7 and lower). If yours are in the ground, try to protect them with a greenhouse plastic covering. It will heat up the soil and speed the plant along while protecting from frost. If the corms are planted too soon in cold soil, they will rot.

To dig up or not

By Anonymous

Hi, what zone is MA. And do the corms get dug up each winter or not?

Folks, see map page:

By Almanac Staff

Folks, see map page:
MA has more than one zone.
It's recommended to lift the bulbs in the fall in zones 7 and lower.

whats the zone

By Anonymous

I live in Modesto, California so what zone do I live in?

Modesto, California is USDA

By Almanac Staff

Modesto, California is USDA zone 9a.

How to I transplant Glads?

By Anonymous

I forced some Glads in a large vase filled with rocks and water following some directions I found on the internet. It is now mid April and they are not calling for anymore really cold weather here in GA. The stems are getting really tall and starting to fall over. However, I do not know how to transplant them. Will this damage their roots? Where should I plant them? I don't want them to die because they seem to be doing so well. I would really like for them to bloom and flourish.

You can plant the glads

By Almanac Staff

You can plant the glads outside if you carefully take them out of the vase without damaging the roots. Plant them in full sun. Dig a deep hole, add some compost and put the bulbs with the roots in the hole. Fill with soil. See above for planting and care information. Put stakes next to the tallest glads.


By Anonymous

Last Spring I planted (zone 6) 75 glads as per the instructions on the package exactly. Not one came up. Do they bloom in year 2 normally?

Most glads are tender bulbs

By Catherine Boeckmann

Most glads are tender bulbs that can't freeze--and Zone 6 is iffy. They don't always come back if it's a cold winter. I've made that mistake, but the bulbs are fairly inexpensive. If you plant some new glads now, you should have blooms in 90 days!

I live in RI, if I put hay on

By Anonymous

I live in RI, if I put hay on the top of my flower beds in the fall will the bulbs be ok for the winter

I live in Middletown,RI

By Anonymous

Where I live, I have never had to dig up my bulbs,(gladilous,tulips,cana,daffodils,columbine, etc;). All I do is put the Fall leaves on my flower beds before the 1st frost. Hope this helps you. Happy Gardening!

Most of RI is too cold to

By Almanac Staff

Most of RI is too cold to cover with hay. In hardiness zones 7 or colder, corms should be dug before the first frost, stored, and replanted in spring.

I Live In RI

By Anonymous

I have way to many Glads in my flower beds. They have started to come up and have the green stems on them, can I transplant them now before the flowers open up to other areas in my yard?

Yes, you can transplant them

By Almanac Staff

Yes, you can transplant them now. Dig carefully so that you don't disturb the bulbs and roots. Plant in new spot and keep watering to prevent transplant shock. You may loose a few flowers but most should be just fine.

When to plant in ZONE 7

By Anonymous

I live in Oklahoma and am planting a few gladiolus as well as a few other things for the first time this season, and I am not quite sure when exactly I should plant them? I know they say last frost, but that's sometimes hard to determine here.

You can plant the glads now.

By Almanac Staff

You can plant the glads now. See our frost chart at with last spring frost dates shown for Oklahoma.

Corms too old?

By Anonymous

I bought corms last November and I would like to plant them this coming April. Thing is is that they were on clearance from last summer - would it be okay to plant them after they've never been in soil for this long? How long can the corms last without being planted? I kept them cool & dry all winter. Thanks!

As long as the corms are dry

By Almanac Staff

As long as the corms are dry and there is no visible rot they are fine.

Planting gladiolus!

By Anonymous

So Im planting gladiolus this spring :) been wanting to for awhile. Just wondering if I should lift the bulbs in winter? I live in paso robles, California, zone 8 :)

You can leave the bulbs in

By Almanac Staff

You can leave the bulbs in the ground. It's recommended to lift the bulbs in the fall in zones 7 and lower.

wild gladiolus

By Anonymous

I saw one blooming in the woods next to me, went over and pulled up a bunch of bulbs and planted them in my yard. Now a couple years later they pop up everywhere in my yard. Is there any reasoning to this? Also why do some bloom and others don't? Thanks
from North Florida (most southernmost part) zone 9a

The corms multiply by

By Almanac Staff

The corms multiply by producing new corms on the top of the mother corm. You can dig them up in the fall and replant them where you want them to grow. The ones that don't bloom are probably the newer smaller corms.

I live in Fresno, CA and have

By Anonymous

I live in Fresno, CA and have left my bulbs in the ground for the last three years. I noticed there is a lot of leafy (almost looks like tall grass) growing around the plant. When I dug it up to see what it was it looked liked little mini corms. What do I do with this? and will they grow to be full size gladiola plants?

They are mini corms and will

By Almanac Staff

They are mini corms and will grow into big corms. Leave them where they are or you can transplant them.


By Anonymous


cold corms

By Almanac Staff

What's the weather forecast now??
With that in mind, if more cold days are likely, or worse, frost, you should probably just leave the foliage alone until all threat of cold weather has passed.
Glad corms should be lifted before cold weather sets in. Since you did not do that, consider whether or not they are deep enough in the ground to avoid the effects of any surface frost. If so, they may survive. Lifting them now may not make any difference.
We hope this helps.

Indoor Gladiolus Help!

By Anonymous

My daughter brought home a bulb from school. I planted it in a pot 11 1/2 inches in diameter. She had no idea what the bulb was. The only place I could put the pot was next to the heater. I usually keep the house at around 64 degrees. Now the gladiolus is about 1 1/2 feet tall! Is the placement of the flower in an adequate area? If so how moist do I keep the soil? How often do I water it? I don't want to disappoint my daughter by having the flower die. Please help. I don't have a green thumb and plants often die on me for some reason.

Your plant will need lots of

By Almanac Staff

Your plant will need lots of sunshine and moist soil. Do not over water it, as this will drown the plant.


By Anonymous

I live in Zone 8-9 in Folsom, CA. Can I plant Gladadiolus every 30 days beginning now? Can I store them in my garage until March, 2013 without causing them to rot or become too dry? Any advice? Thanks! Al Figone

Wait to plant in March. Then

By Almanac Staff

Wait to plant in March. Then plant the bulbs every 2 weeks to get a longer flowering period.
Store the bulbs in a box or paper bag with sawdust. They should be fine in your garage if it doesn't get really cold in there.

mold on corms

By Anonymous

A successful gardener gave me some of her corms after digging. They have some mold on them, but no soft spots. Maybe she put them in a plastic bag before they has dried much after being dug? Are they worth storing and planting next spring?

Gently brush off the mold and

By Almanac Staff

Gently brush off the mold and wrap the individual corms in newspaper. Store them in mesh bags in a well–ventilated room or put them in a paper bag and store them in a dry cool place. Check the corms a few times during the winter months and remove any that are soft.


By Anonymous

I just moved to WA state from CA, and have 3 acres of gardens, trees and lawns. I know nothing about gardening, and I want to keep these gardens alive. I have Glads, Hydrangeas, fruit trees and more. How can I learn to take care of these gardens?

Sounds exciting, though a tad

By Almanac Staff

Sounds exciting, though a tad overwhelming! If you look at our Gardening center, you'll find plant pages on glads, hydrangeas fruit tree, and more. See: That might be a good place to start. You can also visit your county's cooperative extension office as they offer free local information and can be a great help. For your office, see:

Glads every year

By Anonymous

I live in NJ and leave my glads right where they are and they come up every year. I usually don't touch them.Will that continue to work?
Is there something I can cover the ground with ( mulch burlap ) to keep the ground warmer if a very cold winter develops?


By Anonymous

hi i live in christchurch new zealand ive been growing and showing glads for about five years i dig my glads up every year so i can clean them and check them that they dont have any disease or rotten christine

Glad for glads

By Almanac Staff

Far be it from us to change a course of success, but this may be the time. Our weather prediction is for colder than normal temps in NJ, and depending on how deep your bulbs are and how much rain/snow falls (and then seeps down and freezes and, say, melts and freezes again), you might wish you lifted them. You could try adding a few extra inches of mulch (the chunky stuff, bagged or loose, used to line garden beds); that would effectively make the bulbs deeper underground. If you have a lot of glads, maybe split the difference and lift some of them and mulch some of them. We hope this helps!

I live in the Willamette

By Anonymous

I live in the Willamette Valley, in Oregon. Will I need to dig up the bulbs in the winter?

Glads are not hardy below

By Almanac Staff

Glads are not hardy below USDA Zone 6. In your area they may over-winter with a thick layer of mulch.

still blooming

By Anonymous

I planted about 50 glad bulbs at the same time last year. They all bloomed over a period of 6 weeks. Left them in the ground (KY) and this year (after a mild winter, summer drought, and excessive heat) they have been blooming since June...and we are still getting some blooms and it's nearly Oct. I love it, but is this normal?

Yes, it's normal. Gladiolus

By Almanac Staff

Yes, it's normal. Gladiolus bulbs (corms) grow and multiply in the first year. Every 3-4 years you need to lift and divide the corms so that they don't get too crowded. Dividing is best done in the fall after the blooms fade.

i live in North Central

By Anonymous

i live in North Central I need to dig up for winter?

According to your UofA

By Almanac Staff

According to your UofA extension office, "Gladiolus can be left in the garden year round in most parts of the state, but hard winters which freeze the soil to the depth of the corm will kill them. Most people that grow gladiolus for cut flowers dig their plants each fall and store the corms in a dry, frost free area over winter."

Newcomer to Glads

By Anonymous

I live in Missouri, will I have to dig Glads up during winter, never grew them, they are just now ready to bloom. How do you store and is a garage ok?


By Almanac Staff

Yes, you need to dig the bulbs after your first frost. Place the bulbs in a warm dry area for a week or two. Cut the stalks and put the bulbs in a paper bag. Store in a cool, dry area. Garage is OK if it doesn't get too cold in the winter months.

im in zone 8b is it ok to

By Anonymous

im in zone 8b is it ok to leave tha cone in winter time...and i want to change the plase .when can i dig it and plant?

Zone 8b

By Almanac Staff

Yes, you can leave the bulbs in the ground if you add mulch to the top of the soil. In early spring dig the bulbs before they start growing and move them to the new location.

Help please

By Anonymous

In March I planted over 8 bulbs they bloomed so beautifully by May. After one set bloomed the flowers died within two days. The rest bloomed and all the flowers died within a week. I pulled the dead flowers off in hopes more would bloom but it didn't. Soon the stalks started to die. Now the stalk are a yellow green with no life in them. What can I do now. I would like those flowers in my garden again. What to do?

Gladiolus only bloom once per

By Almanac Staff

Gladiolus only bloom once per season. They need a dormant period of 2-3 months while they produce new corms. When the flowers die, you can cut off the stalk. Let the foliage turn yellow and die back. If you live in a warm climate (zone 7-9) you can leave them in the ground. If you live in zone 6 or less, then you need to dig the corms up and store them indoors for the winter. If you wish to prolong your blooming season next year, plant the bulbs at 2-week intervals in the spring.

Zone 3

By Anonymous

I live in Montana and I have successfully arrived at the flowering period almost at September. I saw that you wrote it needs a dormant period of 2-3 months after flowering. So does that mean I dig them up in November- December? And just cover with mulch until then? Or do I dig them at the last frost? Which might happen in a month and a half maybe. We've already had one frost in the last week of August.

Zone 3

By Almanac Staff

You need to remove the bulbs before the ground freezes. We suggest that you dig them after you have had a couple of frosts. Put the bulbs in a dry protected area to dry for a week or two. Then put them in a paper bag and store in cool, dry area over winter.


By Anonymous

Thanks! Do I cut all foliage and just leave the bulb? I'm new to this.

Zone 3

By Almanac Staff

Leave about an inch or two of foliage. Good luck!

No flowers:(

By Anonymous

I Live in Massachusetts and planted bulbs in April. I have tall green stalks but no sign of flowers or buds and it is August. Any idea what's happening?

Yes, they are dead, dead,

By Anonymous

Yes, they are dead, dead, dead. Try again next year.

dead dead dead

By Anonymous

I live in northern New Brunswick, Canada and most of the glads only came into bud in late august,they are now in full bloom the middle of september. Dont give up hope


By Anonymous

I planted in March and gave up seeing any flowers but last week they bloomed over night,i could not believe it they are beautiful

Might yet arrive

By Anonymous

I planted in March, April and May. Some of the ones planted latest flowered first. Some of the ones planted early are just coming into flower now (August). A good many are still growing and I'm expecting them to flower in September.

The flower buds on some of mine looked just like a tight clump of leaves until two weeks before blooming started, deceiving me into thinking no flowers were coming this year.

Gladiolus flowers usually do

By Almanac Staff

Gladiolus flowers usually do not have a problem blooming. Here are tips that might suggest the problem: 1) Gladilus corms need to be lifted in the fall. Did you lift them? And did you store correctly? 2) The soil needs to be well-drained so they don't have corm rot; dig one up to inspect. 3) If you buy small corms, they may not bloom; buy big, health corms. I hope that this helps!

Late planting?

By Anonymous

I purchased 10 bulbs in July and live in zone 6. Can I still plant them this year or will the bulbs survive un-planted until next spring for planting?

Since it takes about 90 days

By Almanac Staff

Since it takes about 90 days from planting to root, bloom, grow, and store enough energy for next year, it isn’t advisable to plant glads now in your area, since the frost will come before then. (About the latest you should plant is early July.) You can, however, try to save the corms for next spring. With proper care, they should come through the winter fine, as long as they are healthy. See the directions under “Harvesting” above for guidelines about overwintering the corms.

Gladiola rot

By Anonymous

i planted 7 gladiola corms in a large plant potter made for the porch made sure they were 4" deep and i watered them and had them sitting in the sun, but the problem was instead of seeing anything growing they rotted in the soil what can i do to avoid this from happening again.

It could be that they had a

By Almanac Staff

It could be that they had a disease that caused them to rot. For example, Fusarium corm rot, also called yellows, is a common problem with gladiolas. Before planting corms, check to see if there are mushy spots, discolorations (such as brown areas), etc. If so, throw them out so that they don’t infect other corms.


By Anonymous

After the flower dies I'm left with what looks like a seed pack , is this another blossom coming out ?


By Almanac Staff

Those are seeds and can be harvested and started in pots. But if you want to save the existing corm you should remove the spent flower and not allow the seeds to set as this takes energy away from the corm in the ground.


By Anonymous

What happens if you just leave the corms in the ground over the winter after you cut the stalk back?


By Almanac Staff

If the soil freezes you will loose the corms. In a warm climate you can leave the corms in the ground.


By Anonymous

After I plated some last summer it seems like 100 baby bulbs have sprouted up next to the original bulbs but the are now not growing well, what can I do? Is it to late to have beautiful flowers his season?


By Almanac Staff

The baby bulbs need time (ususally 2 years) to mature before they bloom. In the fall dig up the bulbs and replant them in a larger area so that they have more space to grow. if you live in a cold climate store the bulbs and replant in the spring.


By Anonymous

I planted 10 bulbs, 7 in a rather shallow plastic shadow box. The other three are in a pail. I have a patio garden. They are all producing leaves and one in deeper soil is starting a flower stock. Can I re-pot these into other pots without damaging the growth or do I need to wait until next year?


By Almanac Staff

For best results gladiolus corms need to be planted about four times as deep as they are wide. The shadow box may be too shallow for healthy growth. You can carefully repot the glads with only leaves to bigger pots. Don't move the glads with flower stocks.

gladiolus in maryland

By Anonymous

I live in Maryland, can you please let me know if I need to take the bulbs out for the winter.

Glad for advice

By Anonymous

I moved into a place that have gladiolus. The garden had not been taken care of for years. Only a few blossomed and they did not look that great. Is there a way of reviving them for next year or should I did them up and plant new bulbs?

Glad for Advice

By Anonymous

I live in Massachusetts and do not dig them up for the winter. I have grown glads for years and every other year, in the fall, I dig them up and replant the healthy corms. This will keep them at the right planting depth and ensure healthy corms. A little plant food in the whole when planting is also a good idea. Your corms are just fine, by now they are probably at the wrong planting depth which inhibits bloom.

Thank you for the

By Anonymous

Thank you for the information. This is the first year I've had glads in my garden and wasn't sure how to prepare them for winter.

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