What Smells do Cats Hate: 7 Must Avoids

Cats have a surprisingly powerful sense of smell. In fact, their sense of smell is considerably stronger than that of humans. A domestic cat’s sense of smell is between 9 and 16 times more powerful than yours so it is worth knowing what smells do cats hate.

Or in other terms, cats have between 45 and 200 million odor-sensitive cells in their nose whereas we humans have just 5 million. So all those cells mean it is a good idea to know what smells do cats hate so you can have a happy feline.

Cats often rely more on their sense of smell than what they can actually see or touch when they are scoping out environments. And cats can detect a smell long after humans can smell nothing.

And did you know that cats actually have 2 senses of smell or 2 “noses”? Your cat has a nose with scent receptors as humans do. However, they also have a vomeronasal organ in the roof of their mouth. This second nose is more attuned to pheromones.

black cat with green eyes up close in herb garden for what smells do cats hate

What Smells do Cats Hate – How this can be helpful

As much as we love our beautiful pussy cats they tend to be curious souls and often want to explore or stay in areas that we don’t want them to – including those which can be harmful to their health.

Understanding which smells cats don’t like can help you in guiding your cat’s behaviour. For example, if your cat loves sections of your garden too much sometimes planting certain herbs can help deter your cat from visiting.

black and white cat and white scratching post

If your cat likes to scratch surfaces of your home that you would prefer he didn’t, spraying the right type of scent may put him off doing this naturally rather than having to use cat repellant products that often contain chemicals.

Additionally, understanding which smells cats don’t like can help you to understand their behaviours and preferences. For example, when I first got a cat I ordered some lavender-scented kitty litter as I thought that sounded lovely. My cat refused to use it and I couldn’t understand why until I found out that cats don’t like the smell of lavender.

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Small gray kitten in plastic litter cat on floor

And do remember that whilst there are some scents which cats just don’t like there are also scents that cats don’t like which are also toxic for them. I will do my best to highlight toxicity where relevant in this post.

NB: If you are using scents to put your cat off certain behaviour do NOT use scents in their essential oils format. Many essential oils are known to be toxic to cats.

Why do Cats have Such a Strong Sense of Smell?

This strong sense of smell is what has helped cats become outstanding hunters as they can sniff prey from a long way off. However, this also means they can sniff cat food and treats from a long distance as well!

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grey and white cat sniffs leaves

Male cats mark their territory with urine or pheromones from glands in their face and feet. They will sniff new territories to see if they can smell the markings of other cats – letting them know if a territory has been marked by another cat.

Cats also relate to each other through smell. A kitten cannot open its eyes intially so will use smell to find and latch on to its mother. Cats also show affection to each other and to their humans by rubbing their heads against each other and their humans. This adds pheromones and oils to “mark” their favourites.

Butt-sniffing is a greeting in the cat community whereas spraying is more about marking territory. And when it comes to mating female cats can seek out male’s territory whilst emitting their own powerful sex pheromone which males can dedect.

This sensitivity to scent is perhaps another reason that cats so enjoy grooming themselves – imagine how much cleaner you would want to be if you could smell the slightest hint of an aroma you found unpleasant?

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grey cat licks its front paws

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List of Smells that Cats Don’t Like

1. Certain Herbs

These include Rue, lavender, rosemary, mint, geranium, eucalyptus, pennyroyal, coleus and lemon thyme. The toxic herbs for cats include mint and lavender in oil form.

2. Strong Citrus scents eg orange peels and includes grapefruit

If your cat loves jumping onto your kitchen cabinets (as mine does) the strategic location of citrus fruits could be enough to put him off. When it comes to what smells do cats hate oranges, lemons and limes are high on the list.

Orange cat sniffing dried catnip

3. Banana

Experts believe it is most likely the potassium in bananas that cats can smell and which then puts them off bananas.

4. Pepper, Curry, Mustard and Cinnamon.

In general, cats don’t like spicy smells. They associate them with potential toxicity. So if you order in a takeaway indian meal don’t be surprised if you see very little of your cat in the kitchen for a while!

5. Pine, Cedar, Wintergreen and Menthol

I tend to associate all of these scents with cleaning products that I personally like but my cat very much doesn’t. A small hit of their scent will usually send a cat running.

Wintergreen and menthol are toxic for cats.

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Kittens sitting in kitty litter tray

6. A dirty litter box

If your cat’s litter box hasn’t been cleared or if has become full your cat will stop using it and find somewhere else to do its business.

7. Many household cleaners

You may have noticed that quite a few of the items in this list are aromas that are very pleasant to humans and are often associated with cleaning products.

These scents plus the chemicals which are common in many household cleaners mean that your cat will not like most cleaning products that you use in your home.

It is important to be sensitive to this when it comes to cleaning in your cats favourite areas and their key items. For example, I have been using baking soda at the bottom of my cat’s litter tray (I put the litter on top) in an effort to reduce smell without upsetting him.

siamese cat in bucket with cleaning products

I have been told that cats don’t like perfume – and I have also been told that cats can love perfume – and often premium brands! So you may want to see what your kitty does and doesn’t like. But don’t spray perfume directly onto them.

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So What Smells do Cats Like?

Now that you’re up to speed with all the smells that your cat may not like how about some smells that they do love to help give your cat the best possible life?

Well of course there is catnip. Valerian root is also well catnip to cats. Olive leaves can also have a somewhat narcotic effect on your cat that they will enjoy.

Beautiful grey cat smiling while being brushed

And your cat will most likely love your smell – particularly when it is shall we say at its extreme. Whenever I return from the gym my cat is all over my runners and sweaty socks go missing with an almost alarming frequency!

Our favourite felines are very sensitive to smell – far more than we simplistic humans. Do use this knowledge to find natural ways to help your cat behave well and to keep it safe and happy.

Lover Valentine persian colourpoint cat with a red heart

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Please Note: This what smells do cats hate post contains affiliate links. That means if you click through on most of the links and end up making a purchase I will receive a small commission. This will not effect the price that you pay. I wanted to make sure that you were aware of this.

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