Growing Potatoes

Planting, Growing, and Harvesting Potatoes

Our Potato Growing Guide covers planting, growing, and harvesting one of our favorite vegetables! Also, see tips on how to store potatoes to keep them fresh—and some homemade potato recipes.

Potatoes can be planted very early in the gardening season—as you soon as the frost is out of the soil and you are able to work the soil!

Folklore offers many “best days” for planting potatoes:

Old-timers in New England planted their potato crops when they saw dandelions blooming in the open fields.
The Pennsylvania Dutch considered St. Gertrude’s Day (March 17, aka St. Patrick’s Day) to be their official potato-planting day.
Many Christians believed that Good Friday was the best day to plant potatoes because the devil holds no power over them at this time.

See more information about planting potatoes below.

Planting

When to Plant Potatoes

Potatoes prefer cool weather.

In Northern regions, some gardeners will plant the first crop of early-maturing potatoes in early to mid-April, 6 to 8 weeks before the average last frost date or as soon as the soil can be worked; they can survive some cool weather but the threat of frost is a gamble. If there is a threat of frost at night, temporarily cover any sprouted foliage with mulch or an artificial covering such as old sheets or plastic containers (and be sure to remember to remove the coverings in the morning).

To avoid frost, consider starting potatoes 0 to 2 weeks after your last spring frost. You may plant earlier, as soon as soil can be worked, but be aware that some crops may be ruined by a frost or overly wet soil.
The soil, not the calendar, will tell you when it’s time to plant. The temperature of the soil should—ideally—be at least 50°F (10°C). The soil should also not be so wet that it sticks together and is hard to work. Let it dry out a bit first. Like other seeds, potato seed pieces will rot if planted in ground that’s too wet.

In Southern regions, potatoes can be grown as a winter crop and planting times range from September to February. Where winters are relatively mild, you can plant a fall crop in September. In central Florida, gardeners plant potatoes in January; and in Georgia they plant in February.

See our Planting Guide for the best dates to plant by zip code or postal code.

Preparing the Planting Site

Potatoes grow best in cool, well-drained, loose soil that is about 45° to 55°F (7° to 13°C).
Choose a location that gets full sun—at least 6 hours of sunlight each day.
Grow potatoes in rows spaced about 3 feet apart.
With a hoe or round-point shovel, dig a trench about 6 inches wide and 8 inches deep, tapering the bottom to about 3 inches wide.
Spread and mix in fully-rotted manure or organic compost in the bottom of the trench before planting. (Learn more about soil amendments and preparing soil for planting.)

Man planting potatoes. Photo by tanyss/Getty Images. — *Preparing seed potatoes for planting. Photo by tanyss/Getty Images.*

How to Plant Potatoes

In each trench, place a seed potato piece (cut side down) every 12 to 14 inches and cover with 3 to 4 inches of soil.
If your garden soil is very rocky, put the seed potato pieces directly on the ground. Sprinkle with a mix of soil and compost. Cover them with straw or leaves, hilling the material up as the potatoes grow.
The best starters are seed potatoes. Do not confuse seed potatoes with potato seeds or grocery produce! Select seed potatoes which have protruding eyes (buds).
Use a clean, sharp paring knife to cut large potatoes into pieces that are roughly the size of a golf ball, making sure that there are at least 2 eyes on each piece. (Potatoes that are smaller than a hen’s egg should be planted whole.)
If you are cutting up potato pieces yourself, do so 1 to 2 days ahead of planting. This will give them the chance to “heal” and form a protective layer over the cut surface, improving both moisture retention and rot resistance.
12 to 16 days after planting, when sprouts appear, use a hoe to gently fill in the trench with another 3 to 4 inches of soil, leaving a few inches of the plants exposed. Repeat in several weeks, leaving the soil mounded up 4 to 5 inches above ground level (this is called “hilling” and is explained more here.).
After the potato plants have emerged, add organic mulch between the rows to conserve moisture, help with weed control, and cool the soil.

Check out this excellent video to see how to plant potatoes.

Care

How to Grow Potatoes

Hilling Potatoes

A critical part of growing potatoes is to not let their tubers (i.e., the potato crop) be exposed to sunlight for too long. Exposed tubers will turn green and produce a toxic compound called solanine, which makes them bitter, inedible, and potentially nausea-inducing.

To combat this, we employ a technique called hilling.

Hilling is simple: As a potato plant grows, it produces a main stem with leaves and flowers aboveground. Meanwhile, underground, tubers form on secondary stems that branch off from the main stem. In order to prevent shallow tubers from being exposed to sunlight and to encourage the plant to keep producing more tubers, a few inches of soil are periodically “hilled” up around the base of the stem. This is typically done three to four times during the season.

Tips for growing and hilling potatoes:

Do the hilling in the morning, when plants are at their tallest. During the heat of the day, plants start drooping.
Maintain even moisture, especially from the time when sprouts appear until several weeks after they blossom. The plants need 1 to 2 inches of water per week. If you water too much right after planting and not enough as the potatoes begin to form, the tubers can become misshapen.
The last hilling should be done before the potato plants bloom, when the aboveground part of the plant is at least a foot tall. Hoe the dirt up around the base of the plant in order to cover the tubers as well as to support the plant.
Practice yearly crop rotation with potatoes.

Pests/Diseases

Potato Scab: Most likely caused by a high soil pH. Remember: Potatoes like acidic soil (do not plant in soil with a pH higher than 5.2). Dust seed potatoes with sulfur before planting. Some readers suggest adding pine straw on top of the potatoes when planting for natural anti-bacterial elements.
Colorado potato beetles need to be hand-picked and predatory birds will often eat them. While they’re in the nymph state, they can be controlled with diatomaceous earth (food grade) which is a non-toxic way to control pests in the garden. If they continue to be a problem, a few sprays of Spinosad, an organic pesticide, will get rid of the beetles. Always use products at dawn or dusk to avoid harming beneficial insects.
Aphids
Flea Beetles
Early/Late Blight

Harvest/Storage

When to Harvest Potatoes

“New potatoes,” which are potatoes that are purposefully harvested early for their smaller size and tender skin, will be ready for harvest 2 to 3 weeks after the plants stop flowering. New potatoes should not be cured and should be eaten within a few days of harvest, as they will not keep for much longer than that.
For mature potatoes, wait 2 to 3 weeks after the plant’s foliage has died back. The tops of the plants need to have completely died before you begin harvesting. Cut browning foliage to the ground and wait 10 to 14 days before harvesting to allow the potatoes to develop a thick enough skin. Don’t wait too long, though, or the potatoes may rot (especially in moisture-laden soil).
Toughen up potatoes for storage before harvest by not watering them much after mid-August.
Dig up a test hill to see how mature the potatoes are. The skins of mature potatoes are thick and firmly attached to the flesh. If the skins are thin and rub off easily, your potatoes are still too new and should be left in the ground for a few more days.
Potatoes can tolerate light frost, but when the first hard frost is expected, it’s time to get out the shovels and start digging potatoes.

How to Harvest Potatoes

Dig potatoes up on a dry day. Dig up gently, being careful not to damage the tubers. Avoid cutting or bruising potato skin. Damaged potatoes will rot during storage and should be used as soon as possible. The soil should not be compact, so digging should be easy.
If the soil is very wet, let the potatoes air-dry as much as possible before putting them in bags or baskets.
Don’t leave the potatoes that you have dug in the sun for long after they have been dug up from your garden, otherwise your potatoes may turn green. Green potatoes have a bitter taste due to the presence of solanine, and if enough is eaten, can cause vomiting and diarrhea. Small spots can be trimmed off, but if there is significant greening, throw the potato out.

How to Store Potatoes

Allow freshly dug potatoes to sit in a dry, cool place (45-60°F / 7-15°C) for up to two weeks. This allows their skins to cure, which will help them keep for longer.
After curing, make sure you brush off any soil clinging to the potatoes, then store potatoes in a cool, dark place, preferably 45° to 50°F (7° to 10°C), with good ventilation. When properly stored, potatoes will remain fresh for up to a month. Throw away potatoes that are shriveled, green, or have many sprouts.
Do not store potatoes with apples; the apples’ ethylene gas will cause potatoes to spoil.
Never store potatoes in the refrigerator.
Whether you dig your own potatoes or buy them at a store, don’t wash them until right before you use them. Washing potatoes shortens their storage life.
Find more tips on getting potatoes ready for the root cellar.

Recommended Varieties

There are more than 100 varieties of potatoes. Tan-skinned and red-skinned varieties with white flesh are the most common in home gardens.

Early Varieties:

‘Irish Cobbler’: tan skin, irregular shape
‘Norland’: red skin, resistant to potato scab
‘Mountain Rose’: red skin and pink flesh, resistant to some viruses

Mid-Season Varieties

‘Red Pontiac’: red skin, deep eyes
‘Viking’: red skin, very productive
‘Chieftan’: red skin, resistant to potato scab, stores well

Late Varieties

‘Katahdin’: tan skin, resistant to some viruses
‘Kennebec’: tan skin, resistant to some viruses and late blight
‘Elba’: tan skin, large round tubers, resistant to blight and potato scab

Blue Potatoes?

We also love All Blue Potatoes! They’re delicious and, well, they’re truly blue!

See our page on how to choose the best potatoes to grow in your garden for more info!

Wit & Wisdom

Before planning your garden, take a look at our plant companions chart to see which veggies are most compatible with potatoes.
Did you know: Potato promoter Antoine Parmentier convinced Marie Antoinette to wear potato blossoms in her hair.
Grated potatoes are said to soothe sunburnt skin.

“What I say is that if a man really likes potatoes, he must be a pretty decent sort of fellow.”
–A. A. Milne, English writer (1882–1956)

Recipes

Cooking Notes

Check out our recipe archives to find potato recipes that range from plain to fancy!

Reader Comments

form.antibot { display: none !important; } You must have JavaScript enabled to use this form.

Often, one can make the final

Often, one can make the final harvest after the plant has died back, unless you desire a smaller sized potato, in which case the main harvest would be earlier, when most tubers have reached the desired size. If you do not have frost in your area, the plant still has plenty of green leaves (along with the new ones), and the plant is not starting to die back (turning brown), then you can certainly let the plant continue to grow and see if it survives to form more tubers.

Iplanted 220 bags of potatoes

Iplanted 220 bags of potatoes my problem is that at what stage did i put top dressing fertiliser and how to haverst

side dressing should be did

side dressing should be did when the plants are 4-6" high I preferr to till between rows and with a hoe about 4" from bot. of plant make small trench both sides apply 10-10-10 fert. then hill the potatos. works every time.

I live in Hardiness Zone 8B

I live in Hardiness Zone 8B is there still a way/type of potato that I can still plant?

Potatoes can be planted as

Potatoes can be planted as soon as the ground is workable but not too wet. This is often 2 to 3 weeks before your average last frost date. The soil temperature should reach 45 degrees. If you're not sure of your frost dates, see our Frost Charts: http://www.almanac.com/frostdates

My wife is Filipino and LOVES

My wife is Filipino and LOVES to plant ANYTHING she can get her hands on. We live in the Bay area of CA. She planted an Ube potato and it has grown into a fairly nice bushy plant and the vegetation has not started to die off yet. Can we expect any kind of a "crop" from this planting??

If you have prepared the

If you have prepared the ground well before planting,you maybe able to harvest a good crop. Just like any potatoes, Ube needs well drain, loose soil and of course good soil (composted manure mix with sand will do the work) to be productive. Keep the soil moist but not soggy, and don't let it dry.

We live in eastern Oregon

We live in eastern Oregon where they grow a lot of potatoes. In the fall the go over the rows with a roller and kill the plants. Then they water them like crazy for days before they harvest. Why do they do this?

At potato harvest, they are

At potato harvest, they are killing the vines to terminate the growth of the tubers to control their size and set their skin which reduces bruising during harvest. This process also reduces insect issues and disease. They are probably applying an herbicide to help vine kill which is best applied at dusk with high volumes of water. This allows the product to penetrate the leaves and stems before being activated by the sunlight the following day. Hope this helps answer your questions!

won't the herbicide enter the

won't the herbicide enter the potato? that sounds like a bad thing to do

I am a first timer in the

I am a first timer in the area of potatoes. How can I grow potatoes? Help me to find out if it is possible to grow potatoes in Gombe, North Eastern part of Nigeria. Gombe is a place with warm climate with between 5 to 6 months of rainfall in a year. The location of my farm is near Dadin kowa dam (Google: Dadin kawo dam, Gombe, Negeria) This will enable you to see my location. The location of my farm is in Maleri, a village situated towards the northern part of the Dadin kowa lake, just by the western bank of the lake.

Thank you.

In the southern regions, when

In the southern regions, when is the right time to plant potatoes? and how long does potatoes take to ripe?

In many southern regions, you

In many southern regions, you plant potatoes in late winter (February, early March). Check with your county's cooperative extension for local dates.

I am 65 and have been

I am 65 and have been planting red potatoes for some years now and my plant date is always Valentine's weekend. Never has failed me. 90 days and I dig. Just my 2 cents worth.

I was brought up to plant

I was brought up to plant potatoes (New England) on or before St. Patrick's Day regardless of weather/frost- it worked there and has worked well for 30 yrs. in the Willamette Valley (Oregon-USA) harvest 1st crop early June, 2nd crop in late summer. Good luck!!

Hello,I have potatoes growing

Hello,I have potatoes growing in a container.pulled out a couple and tasted one,it was a bit bitter,not the best tasting. The potatoes were not exposed to sunlight.Any ideas?

Usually, bitter potatoes

Usually, bitter potatoes means that they have greened up (developed chlorophyll) due to exposure to sunlight, which also encourages colorless solanine to concentrate there, which makes the potato taste bitter. Sprouts at the eyes can also contain solanine and taste bitter.

It's just a guess, but since they were not green, and you likely didn't eat a sprout, perhaps they were not ripe yet or they were stressed in some way, such as by insects or disease?

I planted my seed potatoes

I planted my seed potatoes really late due to rainfall. I am in Edson, Alberta, Canada. I planted the end of May,although this is very late I have huge full plants & am waiting for them to flower. My question is when should blossoms appear given my late planting date?

It's been about 12 weeks or

It's been about 12 weeks or so, right? Usually, flowers would appear about 6 to 10 weeks after planting (depending on type and local conditions). However, there are some varieties that don't flower; they still produce fine potatoes. Perhaps you have one of those types, or they are just delayed a bit in flowering. (Depending on whether you have an early, mid-, or late-season variety, it could take from about 80 to 120 days from planting to harvest.)

Or, sometimes if potatoes get waterlogged or thirsty, or don't have enough sun, they will fail to flower. In this case, they might not produce a good crop. However, your plants are healthy, so it could be they are just a nonflowering type or are a later flowering type.

All you can do is to dig the plant after the foliage has yellowed and died and see what's there. Or, you can gently dig a little bit now with your hands to see if there are any potatoes growing; replace the soil afterward.

With 2014 planting less than

With 2014 planting less than 3 months away, I thought you'd like to know that my usual planting date is around June 1 every year. I live 100 km. north of Edmonton, and my garden catches up with all those gardens planted around the traditional date of May 24. (soil is warmer) Sometimes, conditions don't allow June 1. I've planted as late as June 6th, and harvest as usual - everything. Even late variety potatoes. Good luck!

I just finished building a

I just finished building a potato bin to grow potatoes year round https://sphotos-a.xx.fbcdn.net... We use fresh straw and potato eyes and dig up fresh potatoes year around...any comments?

Interesting. Presumably it

Interesting. Presumably it would work. You might need to add new soil each year and have several of these going every season, with appropriate rotational crops.

I am in potatoe home growing.

I am in potatoe home growing. Thanks for the information.

Just harvested my first ever

Just harvested my first ever potatoes, using your advice. Can I plant another round and harvest in Oct?
BTW: Thank you very much.

In most northern regions

In most northern regions where potatoes thrive (such as Idaho or Minnesota) planting is just done in the very early spring. However, in warm regions, growers have planted in the fall. Some folks who live in places such as North Carolina say fall works better than spring! If you live in a milder climate, plant a small patch and see how it works!

You reported that, washing

You reported that, washing potatoes shortens their storage life? But, how/why? I think washing the soil completly and other microbes on the potato surface will make the potato stored longer. I do not understand the logic why unwashed have longer shelf life.

The dirt protects the

The dirt protects the potatoes from bruising, light, and general deterioration.

According to America's Test

According to America's Test Kitchen, premature washing of fruits and veggies encourages mold growth.

Haven't had many blooms on

Haven't had many blooms on potatoes; how does this affect the crop?

According to the folks at

According to the folks at Idaho Univ, there's not a causal relationship between tuber development and flowering. Potatoes need moderate amounts of nitrogen and cool nights for good tuber growth. In fact, some potato varieties go without flowering and still yield a good harvest. If flowers don't come, we'd advise that you wait at least a week before the plant dies off before harvesting for storage potatoes.