Do Coffee Grounds Repel Earwigs?

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If you’re like most people, you probably have a love-hate relationship with earwigs. You love your plants, but you hate the thought of these destructive pests ruining your hard work.

You may have heard that coffee grounds can help keep earwigs away, but does this home remedy really work? Do coffee grounds repel earwigs? Let’s get to know the myths and facts around this hearsay.

What are earwigs attracted to?

Earwigs are attracted to all sorts of rubbish, including food leftovers and decaying organic matter. They are also known to invade greenhouses and gardens, where they can do a lot of damage.

Common indian Earwig, Forficula auricularia, Satara, Maharashtra, India

However, earwigs are not attracted to coffee grounds. This is a common misconception. The truth is that they are repelled by the smell of coffee grounds, so using them in your garden can help keep these pests away.

What smell do earwigs hate?

There are a few different smells that earwigs seem to hate. These include the smells of lemon, vinegar, clove, and basil. If you’re looking for a natural way to repel earwigs from your garden or home, try using one of these scents.

You can use these scents in different ways, such as putting them near the plants you want to protect or making a spray to apply to the leaves of those plants.

Do coffee grounds repel earwigs?

There is not sufficient scientific evidence or research to say that coffee grounds definitively repel earwigs, but there is some anecdotal evidence that suggests this may be the case.

Coffee grounds can help to prevent earwigs from entering your home as they do not like the smell. However, it is important to note that other plants and methods may work better for repelling earwigs.

Used coffee grounds:

Earwigs are a common pest that can be repelled by used coffee grounds. Coffee grounds can also be used to neutralize other strong smells.

One way is to use them as an odor absorber. You can put them in the refrigerator, freezer, or any other area where there is an odor problem. Coffee grounds can also be employed as a natural pesticide. You can sprinkle them around your plants to repel earwigs and other pests.

They are most commonly used as mulch but can also be used to repel pests. In order to use them as a repellent, they need to be mixed with something else.

For example, you can mix them with water and spray them on plants or mix them with essential oils and put them in a spray bottle.

However, it is important to note that coffee grounds are too acidic to be used directly on the soil, even for acid-loving plants like blueberries, azaleas, and hollies. Some plants that do not like coffee grounds include geranium, asparagus fern, Chinese mustard, and Italian ryegrass.

Do earwigs like coffee grounds?

European Earwig, Hughes, ACT, March 2021

Earwigs do not like the smell of coffee grounds. This is because they have a strong odor that deters them from coming near. You can use this to your advantage by placing coffee grounds around your plants to repel earwigs.

By using coffee grounds, you can create an environment that is unfavorable for earwigs and will help to keep them away from your plants.

Indeed, earwigs are repelled by the bitter taste and smell of coffee grounds. This is a great way to keep them away from your plants without using harsh chemicals.

Four reasons why coffee grounds repel earwigs

Coffee grounds repel earwigs for a variety of reasons. We’re going to go through them all.


One of the reasons why coffee grounds repel earwigs is because of the smell. Earwigs do not like the smell of coffee and will avoid areas where it is present.

The second reason why coffee grounds repels earwigs is the bitter taste. This is because earwigs avoid anything that tastes bad or smells unpleasant. You can sprinkle coffee grounds around your plants to keep earwigs away.


Caffeine is a natural stimulant that is found in coffee. It is also present in other plants, such as tea and cocoa beans. Caffeine has a variety of effects on the body, including increased heart rate and blood pressure and improved mental focus.

It helps to repel earwigs and a variety of other pests. This means that if you sprinkle coffee grounds around your plants, the earwigs will stay away. Additionally, there are various other plants that repel earwigs, such as marigolds and mint.

Bitter taste

Coffee grounds have a bitter taste that deters earwigs from coming near. This is one of many ways to repel earwigs. This is because they don’t like the bitter taste of coffee.

You can either generically spread the coffee grounds around your plants or put them in small containers that you can place near your plants.

Repel pest

Earwigs can be a nuisance in the garden, but there are ways to repel them. One way is to use coffee grounds. Coffee grounds contain caffeine, which is harmful to earwigs.

You can quite easily sprinkle them around your plants or put them in a jar and place it near the plants you want to protect.

Some additional common methods include using vinegar, oil, and coffee grounds. Each of these methodologies has its own benefits and drawbacks, so it is important to choose the right one for your needs.

How to Use Coffee Grounds to Repel Earwigs?

Some techniques can help you get rid of earwigs using coffee grounds.

Direct coffee grounds

You can use coffee grounds to repel earwigs by simply placing them around your plants. Coffee grounds are a natural repellent and will help keep the earwigs away. You can either place the grounds directly on the soil or mix them in with the mulch.

Coffee grounds contain oils that deter these pests, so if you’re having trouble with them, try sprinkling some coffee grounds around your plants.

Mix with water

Coffee grounds can be mixed with water to create a repellent spray that can be used to keep earwigs away. The coffee grounds will help to mask the scent of the plants that earwigs find offensive and will also drown them.

Adding vinegar to water can help control and repel pests, including earwigs. The acetic acid that is a part of the vinegar will kill the insects or deter them from coming near. You can easily use this mixture to spray on plants or around your home to keep earwigs away.

Pour them into the sprayer

do coffee grounds repel earwigs

In order to repel earwigs, you will need to pour coffee grounds into a sprayer. Once you have the sprayer filled with coffee grounds, you can then spray them onto your plants. The coffee grounds will help to keep earwigs away from your plants.

You can also use other methods to keep earwigs away from your plants, such as using garlic or mint oil.


One of the easiest ways to get rid of earwigs is to spray them with an insecticide. If you have an infestation, it is best to try and treat the area where they are living. This can be done by spraying on an insecticide or using a bait trap.

You can use coffee grounds to repel earwigs by spraying them on every flower and plant in your garden. The coffee Grounds will deter the earwigs and keep them away from your plants.


After a couple of days, you need to check if there are any earwigs in your garden. If there are, you will need to repeat the process.

If you find that the coffee grounds are not keeping the earwigs away, you can respray them. This will help to keep the earwigs from coming back. You can use a variety of different sprays, but it is important to make sure that they are safe for plants.

Be sure to mix the coffee grounds well before spraying, as they will not work if they are clumped together.

Can One throw coffee grounds on my lawn to repel earwigs?

Coffee grounds can be used as a natural way to repel earwigs. You can either sprinkle them around your plants or spread them on the ground near your house. Coffee grounds work because they are acidic and oily, which makes them unappetizing to earwigs.

On the other hand, coffee grounds are excellent for earthworms. They love them! The worms will help to aerate and fertilize your soil while they eat the coffee grounds. This is a great way to improve your soil quality and get rid of some earwigs at the same time.

Additionally, there are a number of other plants that can be used to repel earwigs, such as mint, lavender, catnip, and chives.

What is the best home remedy to get rid of earwigs?

Cayenne pepper, garlic, dishwasher, and other common things will repel earwigs. Let’s have a look at them and see how they can keep earwigs away.

Cayenne Pepper

Cayenne pepper is a hot pepper that is often used in cooking. It has a very strong odor and spice, which makes it a great natural repellent for earwigs.

This pepper can be mixed with coffee grounds to create a mixture that will repel earwigs. The mixture can be spread around the plants and flower beds that you want to protect.

Garlic Mixture

Earwigs up close

One of the best ways to get rid of earwigs and other unwanted insects is by using a garlic mixture. This mixture is made up of garlic cloves, water, and dish soap.

It can be sprayed directly on the plants that you want to protect, or it can be used as a perimeter spray around your home.

This mixture can be made with either fresh or dried garlic. Simply mix the garlic with water in a spray bottle and apply it to plants that you want to protect from earwigs. The garlic will release a scent that deters these pests, keeping them away from your garden.


A dishwasher is a generic household appliance that cleans dishes and other kitchenware by spraying them with water and detergent and then sucking up the dirty water. They come in a variety of sizes and styles, but all essentially work the same way.

Earwigs cannot tolerate the chemicals in dishwashers and will avoid them at all costs.

Pest Controller

earwig sits on a stalk of green grass, an insect

There are a few ways to repel earwigs – using plants, barriers, or chemicals. The first way is to use plants that naturally repel them, such as mint, lavender, and garlic. These plants can be used in gardens or around the house to keep earwigs away.

Another way is to create physical barriers, such as placing screens over vents or filling in holes they may use to enter your home. Lastly, there are chemical methods that use pesticides or insecticides.

While these tend to be more effective than using plants alone, they also come with more risks.


Coffee grounds have a bitter smell and taste that earwigs don’t like. Most insects cannot eat coffee grounds. If you spray coffee grounds all over the garden, insects will disappear, and you will be happy.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.