Top 5 Best Groundhog Repellents and Deterrents (**2021 Guide**)

Looking for the best groundhog repellent or deterrent?

Then you're in the right place!

You will learn the following from our professional product review:

  • Our #1 overall best groundhog repellent choice
  • How repellents and deterrents work to deter groundhogs
  • How to use a groundhog repellent to keep them away from your property
  • The typical lifespan of deterrents and how long they will last you
Best Groundhog Repellents
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I Must Garden Animal Repellent
This repellent is strong, long lasting, weather proof, because it doesn't hurt the environment, is all-natural, and has proven results.
FEATURES
  • All natural ingredients
  • Easy to use granules
  • Non-toxic

Continue reading to get the full spectrum of information about groundhog repellents, or skip ahead to our top pick.

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I Must Garden Anumal Repellent
  • All natural ingredients
  • Easy to use granules
  • Non-toxic
  • All natural ingredients
  • Easy to use granules
  • Non-toxic
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Rabbit and Groundhog OUT
  • Contains essential oils
  • Smells good
  • Relatively waterproof
  • Contains essential oils
  • Smells good
  • Relatively waterproof
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ELLASSAY Ultrasonic Mole Repellent
  • Lasts up to four days on one solar charge
  • Holds up well to adverse weather conditions
  • Safe and effective rodent deterrent
  • Lasts up to four days on one solar charge
  • Holds up well to adverse weather conditions
  • Safe and effective rodent deterrent
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Exterminator's Choice Rodent Defense Small Animal Repellent and Deterrent
  • Easy to apply
  • All-natural ingredients
  • Good smell
  • Easy to apply
  • All-natural ingredients
  • Good smell
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Bonide Animal Repellent Granules
  • Works for most small animals and rodents
  • Easy to apply, comes in a shaker bottle
  • Eco-friendly
  • Works for most small animals and rodents
  • Easy to apply, comes in a shaker bottle
  • Eco-friendly
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Our Overall #1 Rated Pick

Updated as of October 13th, 2021

  • All natural ingredients
  • Easy to use granules
  • Non-toxic

Out of the groundhog repellents and deterrents we reviewed, our personal favorite is the I Must Garden Groundhog Repellent. This repellent is strong, long lasting, weather proof,  because it doesn't hurt the environment, is all-natural, and has proven results.

Please remember that groundhog repellents are not 100% effective and some woodchucks will not be deterred from the delicious snacks in the garden.

If you're interested in learning more about groundhog repellents or deterrents or want to read more about the other products we considered, see below!

Rating: 97.50

Our #1 Ranked For: Termites,Bed Bugs, and Larger Infestations

Rating: 97.00

Our #1 Ranked For: Ants, Roaches, Spiders, and Rodents Issues

Rating: 95.70

Our #1 Ranked For: Mosquito Removal, Fleas, Ticks, Wasps, And Other Stinging Insects

Groundhog Repellents/Deterrents We Reviewed

Short on time?  Take a look below for the top 5 in our list. Otherwise, check out our buying guide.

  1. I Must Garden Groundhog Repellent (Our Top Pick)
  2. Rabbit and Groundhog OUT
  3. ELLASSAY Ultrasonic Mole Repellent
  4. Exterminator's Choice Rodent Defense Small Animal Repellent and Deterrent
  5. Bonide Animal Repellent Granules

But first, you can watch this video to understand why groundhogs are so hard to get rid of!

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What Is a Groundhog Repellent or Deterrent?

A groundhog repellent or deterrent is exactly what it sounds like. It can be a spray, granule, or ultrasonic device which keeps groundhogs, also called woodchucks, away from certain patches of land. Many people use them around their garden, outdoor sheds, vegetables, or other potential targets.

But before you decide to target your groundhog problem with repellents, double check that groundhogs are really the pests that you're dealing with.

How Do Repellents Work?

After you ensure that groundhogs are the problem, you have to choose the right repellent. Most repellents which are sprays or granules, produce an odor which is unpleasant for groundhogs.

The animal will smell it and be deterred from approaching the plants beyond the barrier. Some also contain materials which are toxic when ingested and could hurt the groundhog, like ammonia.

An ultrasonic deterrent is different. These small devices supposedly emit a high-pitched sound on a frequency humans can't hear. It's extremely unpleasant and groundhogs will avoid them as much as possible.

Chemical vs. Ultrasonic

The main difference between these two options are the inherent risk for the groundhog or the plants near the repellents. Chemicals are more effective but some can be harmful to animals and humans. Sometimes they will leave toxic byproducts behind as well.

Ultrasonic repellents or deterrents are more expensive but don't include toxic elements. However, scientists are still undecided about whether they actually work or not, which can be bad news for the homeowner who invests in one.

These repellents use noise or ultrasonic pulses in the ground to scare away groundhogs.

What Are the Risks of Repellents?

As with any repellent, there is always the risk of chemicals being ingested or sinking into the soil in the area where it is applied. Nowadays, a lot of deterrents are non-toxic, but users should always be wary of ingredients like ammonia.

There is also a chance that the groundhog will ignore the deterrent. If this happens, then your garden and plants are still at risk of being eaten. Most pest control experts recommend trying a different repellent in this case or spraying some type of pepper spray on plants that are being nibbled.

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How to Use a Repellent

Most repellents come with instructions that should be followed to the letter. Failing to do so can result in unintended and unpleasant consequences, such as ingesting toxic chemicals or even attracting a different form of wildlife. For instance, coyote urine might bring different visitors to the yard.

As with most outdoor pest control products, be sure to read the instructions and follow them carefully.

Know Your Enemy

One of the most important steps to using any form of repellent or deterrent is to know your groundhog's habits. If you have a creature that really likes your vegetable garden, than the repellent needs to be near that area.

Read also: What do groundhogs like to eat? 

If your friendly neighborhood woodchuck constantly digs under the garden shed, then the deterrent should be placed there instead.

Rating: 97.50

Our #1 Ranked For: Termites,Bed Bugs, and Larger Infestations

Rating: 97.00

Our #1 Ranked For: Ants, Roaches, Spiders, and Rodents Issues

Rating: 95.70

Our #1 Ranked For: Mosquito Removal, Fleas, Ticks, Wasps, And Other Stinging Insects

Do Groundhog Repellents Work?

Groundhog repellents are a mixed bag. Some of them work, but others don't seem to have the desired effect. The most common reason for a deterrent not working is that the woodchuck itself is simply too determined or tenacious to be stopped by a spray or noise.

If this is the case, consider looking into a groundhog trap to catch the persistent pest.

Read also: What are other methods of getting rid of groundhogs?

How Much Does a Deterrent Cost?

Most woodchuck deterrents are relatively inexpensive. Almost all products contain multiple uses and are guaranteed to last for at least two weeks to a month.

Some ultrasonic repellents will be more expensive, but they last closer to six months.

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We’ve partnered with Terminix to bring you exclusive discounts and priority service for your pest control needs. Click to get your free instant price quote.
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Limited Time: Save $50 off your pest control service.

Groundhog Repellents/Deterrents Reviewed

In the below section we break down each of our product recommendations in a little more detail.

  1. I Must Garden Groundhog Repellent (Our Top Pick)
  2. Rabbit and Groundhog OUT
  3. ELLASSAY Ultrasonic Mole Repellent
  4. Exterminator's Choice Rodent Defense Small Animal Repellent and Deterrent
  5. Bonide Animal Repellent Granules
  • All natural ingredients
  • Easy to use granules
  • Non-toxic

I Must Garden Animal Repellent is a repellent that uses granules to keep groundhogs and other plant-eating pests away. The granules are long-lasting and weather-resistant.


This repellent is non-toxic and doesn't contain harmful chemicals or poison. It utilizes natural ingredients that are safe for people, pets, and the environment


This groundhog repellent comes in a container and can be sprinkled around the yard safely. A single container weights 2.5 lbs and can be used multiple times.


Pros

  • The repellent is non-toxic and environmentally friendly
  • Each container possesses multiple uses
  • The repellent is long-lasting
  • The deterrent smells pleasant

Cons

  • Not all groundhogs will be affected
  • Contains essential oils
  • Smells good
  • Relatively waterproof

Rabbit and Groundhog OUT is an easy-to-use spray that utilizes essential oils for an effective repellent with a fresh scent. The repellent doesn't wash away easily and can survive at least one rainstorm.


The Deer Out groundhog repellent comes in a 40 oz. bottle and can be used around gardens, vegetables, and other plants.


This spray is easy to use and requires little to no preparation.


This product is useful to individuals who have pest problems but would like a more natural alternative to traditional repellents.


Pros

  • The deterrent is inexpensive and comes in a large container
  • There are multiple uses per bottle
  • The repellent is easy to use
  • The deterrent smells pleasant

Cons

  • Sometimes the bottle nozzle malfunctions
  • Some rabbits and groundhogs enjoy the taste
  • Lasts up to four days on one solar charge
  • Holds up well to adverse weather conditions
  • Safe and effective rodent deterrent

The ELLASSAY Ultrasonic Mole Repeller kit has four solar-powered stakes to chase away even the most stubborn burrowing rodents. Each solar charge lasts up to four days, and they're guaranteed to work during worst weather conditions. 

The secret is in its unique ultrasonic technology that sends out a pulse every 20 seconds. Humans can't hear it, but gophers can, and every time they do, it sends them running to another location.

Pros

  • Lasts up to four days on one solar charge
  • Holds up well to adverse weather conditions
  • Safe and effective rodent deterrent
  • Covers a wide area

Cons

  • Initial charge may take up to two days

Exterminator's Choice Rodent Defense is a convenient spray designed to repel small burrowing pests like groundhogs, moles, and voles.

This repellent should not affect pets and is environmentally friendly. However, it can stain painted or stained areas.

Due to the size of the spray bottle, this groundhog repellent is ideal for small problem areas.

Pros

  • The repellent is easy to apply
  • All-natural ingredientsEnvironmentally friendly
  • Proper application is long-lasting

Cons

  • One bottle only covers a small area
  • Works for most small animals and rodents
  • Easy to apply, comes in a shaker bottle
  • Eco-friendly

Defend your lawn or garden from groundhogs with this strong animal repellent from Bonide. Unlike sprays, the granules in this unique formula are designed to irritate the nasal passages of curious animals gently. Once they get a whiff of these repellent granules, they don't return. Best of all, humans don't notice it. 

To activate the repellent granules, sprinkle throughout the area and water in. They work for up to two months, are fully biodegradable, and safe for the environment. Bonide Repellent granules work for small and large animals but won't harm them in any way. 

Pros

  • Works for most small animals and rodents
  • Easy to apply, comes in a shaker bottle
  • Eco-friendly
  • Long-lasting repellent

Cons

  • May not work as well for larger animals
  • Necessary to water in the granules to activate

Our Top Pick: I MUST GARDEN Groundhog Repellent

Out of all of the repellents reviewed, our personal favorite is the I MUST GARDEN Groundhog Repellent because:

  • It contains all-natural ingredients
  • It comes in easy to use granules
  • The formula is non-toxic

This groundhog repellent is long-lasting and weather-resistant. Depending on the size of your yard, the product can be applied multiple times before a new container is needed.

People will have different needs when it comes to groundhogs. Some want to kill them, others want to trap them, and still others just want them to leave the garden alone.

Ultimately, you should choose which method is best for you.

Other Groundhog Product Reviews

Curious about other groundhog-related products? Check out our other detailed guides to help you deal with your pest problems.

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Our pest experts review each company for quality, cost, customer service, safety, and 100’s of other important factors and assess a rating out of 100. Below are our top 3 picks based on that review for pest removal. We’ve set up a direct line with each company so you can get fast free quotes right now.

Rating: 97.50

Our #1 Ranked For: Termites,Bed Bugs, and Larger Infestations

Rating: 97.00

Our #1 Ranked For: Ants, Roaches, Spiders, and Rodents Issues

Rating: 95.70

Our #1 Ranked For: Mosquito Removal, Fleas, Ticks, Wasps, And Other Stinging Insects

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