Surprising Smells Cats Hate
Do cats have a good sense of smell?
You might be surprised to learn just how powerful your cat’s sense of smell is—14 to 40 times stronger than a human’s, by some estimates. Because cats often experience odors more intensely than people, they don’t perceive scents (good or bad) the same way. Let’s learn more about which smells cats hate.
Surprising smells cats hate
Not all cats will dislike these scents, but many of them do. Although some odors can be dispensed as essential oils, we don’t recommend using this method to deter your cat from certain rooms. Why? Because many essential oils are known to be toxic to cats.
Citrus fruits - smells cats hate
Citrus: orange, lemon, lime, and grapefruit
Citrus smells are widely reported as being repugnant to cats. You can use this to your advantage by throwing orange peels around your garden to keep cats away or spritzing a citrus scent on indoor fabric you don’t want your cat scratching up. Citrus fruits are edible for cats (although most of them probably won’t be interested), but the skins and plant material may cause vomiting, diarrhea, or dermatitis.
Lavender, geranium, and eucalyptus
Some gardeners use lavender plants to deter deer, but you can also try this as a deterrent for felines. Likewise, geranium and eucalyptus plants give off an odor that cats dislike. Remember that lavender, geranium, and eucalyptus are all somewhat toxic to cats; if ingested, they can cause excess salivation, nausea, vomiting, anorexia, depression, or dermatitis.
Rosemary, thyme, and rue
Cats turn their noses up at certain common herbs, including rosemary, rue, and thyme. Rosemary and thyme are typically harmless to cats, while rue may cause an adverse reaction (as it can in humans).
Banana and mustard
While cats can eat banana and mustard (a winning combination, no?), they probably won’t want to. These common kitchen finds give off distinct odors that cats don’t care about.
Cinnamon sticks - smells cats hate
Pepper, curry, and cinnamon
Intense spicy aromas like pepper, curry, and cinnamon also ward off cats. However, we do not recommend using cayenne or other pepper flakes to keep cats out of the garden, as this could harm them. Cinnamon is non-toxic to cats.
Mint, wintergreen, and menthol
More smells cats hate include mint and strong mint-related odors, such as wintergreen and menthol. That may be for good reason, as ingesting mint and its relatives can cause vomiting and diarrhea in cats.
Remember that a natural cat litter containing pine material may put off your cat. Cats generally prefer the unscented clumping litter to do their business.
Not-so-surprising smells cats hate
There are certain odors that cats and people alike despise.
cat using Litter-Robot 4
Dirty litter box
Cats are fastidious creatures, which means they hate using a dirty litter box as much as you hate smelling one. If you have multiple cats, you may run into even more issues with a dirty litter box. Some cats can be highly territorial, so smelling another cat’s waste in the litter box might deter them right out of the box—and onto the rug instead. Never scoop again, and give your cat a clean litter bed every time with a self-cleaning litter box like Litter-Robot 4! If you have a traditional litter box, you can eliminate litter box odors using OdorTrap™, which uses plant-based oils to attract, attach to, and destroy odor molecules with natural chemistry.
Skunk, or coleus canina
Cats instinctively know to beware of the potent spray of a skunk. Coleus canina, also known as the “scaredy cat plant,” has a distinctive skunk smell and a dog repellent. If you can stomach the bouquet, you might try planting these in your garden to keep cats away.
Another surprise: Big cats’ love of perfume
On the opposite end of the spectrum, we learned a delightful fact about big cats: They love the smell of perfumes! In recent years, zookeepers at Banham Zoo in the UK called for old or unwanted scents sprayed in big cats’ enclosures as part of their positive enrichment programs. In particular, the big kitties seem to love Calvin Klein perfume. Check out the video below!
While a love for perfume hasn’t been tested on domestic cats, you may want to try a little experiment at home! (Don’t spray perfume directly on cats, of course.)