Are you looking to make cat repellent? Homemade cat repellent? Especially, outdoor cat repellant to keep cats out of yard? Floppycats.com has some ideas for you! A lot of the sprays that keep animals away contain animal urine of like a fox or something. There are water deterrents, sound or air puff deterrents that work by motion sensing available at Petsmart and garden places sell scat cat mats that are pokey pads that come up thru the mulch - they would probably stop a scratcher but not a sprayer.
Yes, even cat lovers need to know about cat repellent. After all, if you have an indoor cat, you might not want your neighbor’s cat visiting your yard and upsetting your kitty cat.
Outdoor Cat Repellant
There are several ways to keep cats out of yard without causing actual harm to the cat.
One way to get rid of any type of animal that pees on your property is to get a local pet store to keep some ferret urine. Then sprinkle that ferret urine on the perimeter of your property. It keeps raccoons away, and cats too.
Another way to create an outdoor cat repellant is to use moth balls or coffee grounds. Sprinkle them in your yard or garden and they will help keep animals from using your yard or garden as a litter box.
A third way is to mulch in cayenne pepper or any pepper that comes in flake or powder form, so that you can sprinkle liberally on the dirt. Even when wet, unless the soil washes away (like down a drain or into the street), the heat of the pepper is active. You can purchase really cheap hot pepper flakes anywhere, even opening the crushed pepper flakes you get with pizza into a sprayer and concentrate the pepper "juice" as hot as you want before spraying it on the area around your plants. The hot pepper does nothing for the flowers or the grass; in fact, it also cuts down on the bugs too.
Garlic and orange peels also do the trick sometimes as well.
Good luck and please let us know how you make cat repellent.