Do Spiders Hate Walnuts

Spiders do not hate walnuts, and there’s no scientific evidence that walnuts repel spiders in any meaningful way.
 
If you’ve been asking yourself “do spiders hate walnuts?” because of something you read online, you’re not alone.
 
The idea that spiders hate walnuts has floated around natural pest control circles for years.
 
Some people even swear that placing walnuts around their home keeps spiders away.
 
But when you dig into the science, spiders don’t hate walnuts the way you might expect.
 
There’s no compound in walnuts that spiders detect and avoid.
 
What’s really happening is a mix of folklore, coincidence, and a misunderstanding of how spiders behave.
 
In this post, we’ll explore whether spiders hate walnuts, where this claim comes from, and what actually works to keep spiders out of your space.
 
Let’s get into it.
 

Do Spiders Hate Walnuts? Here’s What’s Really Going On

The short answer is no, spiders don’t hate walnuts.
 
Spiders aren’t repelled by the smell of walnuts, the texture of walnut shells, or any chemical compound found in walnuts.
 
The myth that spiders hate walnuts likely started because people confuse walnuts with other natural repellents that do have some effect.
 
For example, chestnuts and horse chestnuts contain a compound called aescin, which some studies suggest may repel certain insects and spiders.
 
Walnuts, however, don’t contain aescin.
 
So if you’ve been scattering walnuts around your windowsills hoping spiders hate walnuts enough to stay away, you’re probably wasting your walnuts.
 
That said, there are a few reasons why someone might think spiders hate walnuts.
 
Let’s break those down.
 

1. Confusion With Horse Chestnuts

The most common reason people believe spiders hate walnuts is because they mix them up with horse chestnuts.
 
Horse chestnuts, also called conkers, have a long history in folk pest control.
 
People place conkers in corners and near doorways to repel spiders.
 
Some research supports the idea that horse chestnuts may have mild repellent properties.
 
Walnuts, though, are a completely different nut.
 
They don’t share the same chemical makeup as horse chestnuts.
 
So when someone says spiders hate walnuts, they’re likely repeating a game of telephone that started with horse chestnuts.
 

2. Walnut Shells Create Clutter Spiders Avoid

Spiders don’t hate walnuts, but they do avoid cluttered, dusty areas.
 
If you pile walnut shells in a corner, spiders may stay away because that spot becomes hard to navigate.
 
It’s not the walnut itself that repels them.
 
It’s the physical obstruction and the lack of clear web-building space.
 
So technically, walnuts can indirectly discourage spiders, but not because spiders hate walnuts.
 
They just don’t like messy real estate.
 

3. Strong Smells Can Overwhelm Spiders

Spiders rely heavily on scent and vibration to hunt and navigate.
 
Extremely strong odors, like peppermint, citrus, or vinegar, can interfere with their senses.
 
Walnuts have a mild, earthy smell, but it’s not strong enough to bother a spider.
 
So no, spiders don’t hate walnuts for their smell.
 
If you want to use smell to repel spiders, you’re better off with essential oils like peppermint or eucalyptus.
 

Why People Think Spiders Hate Walnuts

The myth that spiders hate walnuts persists because it’s easy to test and easy to confirm by coincidence.
 
Imagine you put walnuts in a corner and later notice fewer spiders there.
 
You might conclude spiders hate walnuts.
 
But in reality, the spiders may have moved because of temperature changes, humidity shifts, or a lack of prey.
 
Spiders are opportunistic.
 
They go where the food is.
 
If your walnut corner doesn’t have bugs to eat, spiders won’t hang around.
 
It’s not that spiders hate walnuts.
 
It’s that they love a good meal more.
 

What Actually Repels Spiders (If Walnuts Don’t)

If spiders don’t hate walnuts, what do they hate?
 
Here are a few things that genuinely discourage spiders.
 

1. Peppermint Oil

Peppermint oil is one of the most popular natural spider repellents.
 
Spiders seem to dislike the strong menthol scent.
 
Mix a few drops with water in a spray bottle and spritz corners, baseboards, and windowsills.
 
Reapply every few days because the scent fades.
 

2. Citrus Peels

Citrus peels, especially lemon and orange, contain d-limonene.
 
This compound can be toxic to some insects and irritating to spiders.
 
Rubbing peels along baseboards or leaving them in corners may help.
 
Just don’t expect walnuts to do the same job.
 

3. Vinegar Spray

White vinegar is another common repellent.
 
Spiders don’t like the acidic smell.
 
Spray diluted vinegar in areas where spiders tend to appear.
 
Again, walnuts don’t have this effect.
 

4. Cedar and Chestnut

Cedar blocks and horse chestnuts are often used in closets and drawers.
 
These materials have Natural compounds that spiders seem to avoid.
 
Walnuts are not on that list.
 

5. Keeping Things Clean and Dry

The best spider repellent is a tidy home.
 
Spiders love clutter, dark corners, and moisture.
 
Remove webs, vacuum regularly, and fix leaky pipes.
 
Do that, and you won’t need to worry about whether spiders hate walnuts.
 

So, Do Spiders Hate Walnuts?

Spiders do not hate walnuts.
 
There’s no scientific evidence that walnuts repel spiders, and the whole idea is likely a mix-up with horse chestnuts.
 
Walnuts might indirectly discourage spiders if they create clutter, but that’s not the same as spiders hating walnuts.
 
If you really want to keep spiders out, skip the walnuts and try peppermint oil, citrus peels, or good old-fashioned cleaning.
 
Hope this clears up whether spiders hate walnuts and gives you better ways to handle spiders in your home.