Benefits of Snakes in the Garden
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Garter snakes are a gardener’s friend! Harmless to humans, they eat the pests that wreak havoc in your garden. Learn more about the shy but helpful gardening helper who just wants to live peacefully in harmony with you—and eat your slugs!
I found a snake skin in my garden a few weeks ago. While other people might have been freaked out, it made me happy to know that snakes find my yard a good place to call home. The garter snake is the snake species that North American gardeners will most often encounter—and we should be thankful!
Of course, I am lucky that there are no venomous snakes in my area. Unlike other parts of the country, we have just one type of venomous snake in New Hampshire—the timber rattlesnake—and it is not found anywhere near where I live. In fact, they are so rare that the NH Fish & Game Department has implanted radio tracking devices in the ones that they have caught to keep an eye on their movements. I kind of wish we did have some; they’re known to eat tick-infested mice!
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About Garter Snakes
There are many types of garter snakes found all across North America, from Mexico to Canada. They have a variety patterns and markings, and can be brown, tan, olive, or black with yellow, red, orange, or even blue stripes down their sides and backs. Some are all black. They can grow to be over 4 feet long, but most adults reach only 2–3 feet in length.
- Often called “gardener snakes,” they earn that name by eating grasshoppers, slugs, grubs, and other insects. A large adult garter snake may even eat mice. (Unfortunately, they also eat some critters such as frogs, toads, salamanders, and earthworms.) To eat large prey, they unhinge their jaw from their skull. Back-curving teeth keep the prey from escaping.
- Since they grow throughout their lifetime, snakes need to shed their skin when it gets too small. To do this, they rub their head on something rough to hook the skin near their lips and as they crawl out of it, the skin is turned inside out.
Even the scales covering a snake’s eyes are shed.
- Garter snakes won’t bite you unless provoked. They won’t chase you. They are really very shy and are not looking for a fight!
- Garter snakes do produce a very weak venom, but the venom is so mild that it rarely has any effect on humans (it can cause light swelling in those who are allergic, however). The snake uses its venom to subdue larger prey items, like frogs and mice.
- Active year-round in the south, in the northern half of North America they hibernate below the frostline in the winter, congregating in large numbers in burrows and crevices to keep warm during the cold months. In the spring, they emerge and mate.
- Females only breed every 2 to 3 years. They bear live young in the late summer, usually having between 4 and 20 babies, though some can bear up to 85!
- It takes 2 years for garter snakes to reach maturity and they can live to be 10 years old in the wild.
I never expected to see this fine fellow draped among the hostas. Hopefully he had been feasting on slugs.
Benefits of Snakes in the Garden
I see these fine fellows often in the spring out sunning themselves on large flat rocks. Since they are cold-blooded, they need the sun’s warmth to help them digest their food. In the summer, I hear them slithering beneath the landscape fabric and black plastic that we use for mulch in some of the garden beds.
When I’m picking cucumbers or squash, they will swiftly slip out of the way—and it can be startling—but I am happy to have them, especially if they are eating the cucumber beetles, slugs, and squash bugs.
This guy must have spent the winter in the greenhouse. We came eye-to-eye as I was rummaging around under the bench for pots this spring. I was more alarmed than he was. He stayed put long enough for me to run and get my camera and even posed for a close-up.
A Word of Warning
Garter snakes are relatively harmless, beneficial predators of rodents and insect pests. However, do not pick it up. Alarmed, it may give you a little nip (harmless but still a bite).
Learn to identify snake species as well. There are venomous species that can be dangerous if provoked or startled. Pit vipers such as water moccasins and rattlesnakes have thick bodies, narrow necks, and wide triangular heads, while non-venomous snakes tend to have heads that are barely bigger than their necks. If you are unsure what venomous snakes are located in your state, check out this list of venomous snakes by state.
Do you have snakes in your garden? Do you find them beneficial or harmful? Please comment below!
Do you have snakes in the house? Readers share their stories here.
Robin Sweetser
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Yes! We have beautiful Garter snakes in our garden! I almost stepped on an adult black with yellow stripes while moving the sprinkler today. I’m happy to have missed it and it safely slithered between my feet into the grass and crocosmia beds to avoid me. I haven’t seen a lot of evidence of slugs on or around our plants these past couple of years, so the snake(s) are helping keep their numbers down. We also love spiders! In our State, there are only three species we have to watch for and they, fortunately, are rare in our area. We also have frogs, lots of bees, esp. Bumble Bees, wild rabbits, etc… We do our best to ‘live in harmony’ with these animals and love having them around, except for the rabbits when they eat our plants! At least their poop helps fertilize our lawn. Unfortunately, the rabbit poop attracts rats… It’s an ecosystem loop. :)
When I moved from the city to a house near farmland, I found a partial snakeskin in my veggie garden but didn't know it at the time. Shortly after, my mom (born and raised in a very large city) came across a garter snake in the process of swallowing a large slug. Her shocked/repulsed/fascinated reaction was hilarious! One of the best pictures I ever took was of a black and yellow-striped granddaddy garter snake sunning itself on top of my blue hydrangea blooms. Just beautiful. Sadly, I haven't seen the snakes in my yard in a couple years.
I haven't seen any garter snakes, though I'm sure they're around; primarily, we have rat snakes, and they are the stockman's best friend. They keep rodents out of the feed barrels. Occasionally one will eat an egg. They've learned we won't hurt them, and will even stay put and allow us to root around under them for any other eggs that may still be in the nest! While the area is notorious for pit vipers in general and rattlesnakes in particular (the region once went by the name "Rattlesnake Springs"), we've never seen one on our farm, and we've never lost an animal to snakebite. Don't know what's keeping them away, but I'm not complaining! ;D
I live in a Chicago western suburb & only found garter snakes in a field of possibly 8-10 acres held by the municipality for some 35 years & meant for a future school location.
We have a shameful nature center that built an "eco-friendly building" 40 years ago but has ABOLITELY NO EDUCATIONAL DISPLAYS for immigrants from Asian or eastern descent to understand the Geology of our area or the relationship of the land, man or their local wildlife.
Last year they stripped ALL THE SOIL OF THAT ACREAGE OFF DOWN TO THE CLAY SUBSOIL.
This environmentally destructive building technique not only DESTROYS ALL EARTHEN DWELLING grounds squirrels, snakes AND ALSO HONEYBEE HIVES that often build subterranean nests.
With this comuning massive influx of immigrants, we are lucky that ANY OF THEIR CHILDREN LEARN ANYTHING about the EARTH THE "GREENIES" say they want to SAVE.
They'll dind their new "neighbors" never learned sh*t! ( That's where "the frizbee" came from).
I learned like Davey Crocket..."raised in the woods til he new every tree"...and learned the rocks, the forest wildflowers, the birds & reptiles in Boy Scouting at 11. My farming ancestors taught me soils, fertizers and replenishing our fields nutrients. My yard is a small restored IL forest lot and I'm 70.
ALL THE BIRDS MIGRATING & WILDFLOWERS ARRIVE..."ON SEASON". Except.if the flowers bloom & there are NO INSECTS due to unusually cold springs ( insects won't hatch"..they're cold blooded) arriving MIGRATORY BIRDS will STARVE. FURTHER...the wildflowers...now UNPOLLINATED...will languish and fail to spread seeds.
"A little knowledge is a dangerous thing"...as in "KILL IT!..IT'S A SNAKE!!!
It's primarily man's compulsion for using poisons & sprays that are killing insects, birds and CAUSIMG AUTISM because humans want GOLF COARSE LAWNS LAWNS & OPEN SIGHTLINES easily maintained by lawncare services while they sit in front of their "fairyland flat-screen televisions.
MY DOCTOR SAYS I'll be leaving soon, so let the kids worry about it".
I worry as to WHAT MORON will buy & destroy my restored "HABITAT", the 50 pine tree wind break I planted when I was 35, my maples, oaks & hickories that feed their wild inhabitants.
What one man created over his lifetime can be destroyed in 1-2 days.
And the kids learn...that bug could bite you! CRUSH IT!
Yes I have one he or she actually lives under my steps 3 steps concrete leading to back door . Actually today when cutting my front yard I seen a tiny one almost ran it over so maybe it's a female
I live next to a creek in Idaho. Since my cat discovered that snakes are fun to hunt (thankfully we don't have dangerous varieties in the nearby vicinity), he's brought me 5 so far this year. He drops them at my feet - once in the house! - and then just walks away. I must appear to him to be terrible hunter, and so out of pity he helps me out. Recognizing that they are garter snakes, I just pick them up and move them back to the grass by the creek. I've never been bitten, granted they are a bit in shock. My cat bit the first two, but it seems he's learned how to catch them without piercing them. The snakes always turn their head to face me while I am carrying them back to the grass. Maybe they don't bite because they sense my benign intentions?
I live just south of Cleveland, Ohio. Last week, I found a baby garden snake, and would very much like to keep him around, as we have LOTS for him to eat. I also know he (she?) has siblings but I haven't seen them in the hostas where this baby lives. Any suggestions? Thanks in advance!
It sounds like your garden is already an Eden for them! As long as there is food, water, and shelter, they should stick around.
Garter and Rat snakes are welcomed by our household! These snakes are so beneficial and nothing can replace them as control of pests. Saw a 3 inch Mantis the other day and he/she was mean, even tried to bite my fingers. I'll take the snakes anytime over the mantis, though they also perform yeoman duties in the garden!
I live in Colorado, and I'm used to seeing garter snakes in my garden. This year was unusual as we didn't see them until July. I was relieved when they finally showed up, because they really do control the pest population. Sometimes they startle me, but they are quite harmless. I've finally convinced my husband to wander around the yard before he mows so we don't have any snake casualties. My neighbors think I'm nuts, but I welcome the snakes every year and appreciate their service.
