Cats make wonderful pets, but sometimes they exhibit behaviour that is not only inappropriate but downright destructive. Clawed furniture and half-chewed houseplants is not only an eyesore, but these items can be costly to replace. You can make your own natural cat repellent that will be safe to use indoors, effective and inexpensive. Your cat will find the smell of rosemary to be so repulsive that she will hide or, at the very least, keep away from the areas that have been sprayed with the rosemary solution.
Bring approximately four cups of water to a boil. This will be enough to fill a quart-size spray bottle with the rosemary repellent.
Add eight rosemary tea bags to the boiled water. Cover the pot with a lid and allow the tea mixture to steep overnight.
Remove the rosemary tea bags from the water the following morning, but do not discard. Once dry, the tea bags can be placed in strategic areas of your home that you would like to make off limits for your cat.
Pour the rosemary water into the spray bottle and lightly spray your furniture and carpeting of the room that you would like your cat to stay away from. If your cat digs up the houseplants or gnaws on the leaves, you can spray them as well.
If you wish to make more than one quart of rosemary spray at a time, just be sure to keep the ratio of eight rosemary tea bags for every one quart of water.
The rosemary spray also works very effectively in outdoor areas where stray cats may linger. Just remember to spray after each rainfall because the solution will be washed away. The leftover tea bags can also be buried in flower beds or other landscaped areas. Once the cats dig them up, chances are they won't come back. Fresh rosemary herbs and essential oils also work effectively as natural cat repellents. Sprinkling some of the essential oils along the threshold of a room will create a barrier that your cat will very likely not cross once he gets a whiff. Rosemary is also effective in repelling fleas. Spray your lawn and other common areas with the rosemary spray instead of using a dangerous insecticide.
When using the rosemary spray on fabric furniture, spray a small area that will not be very noticeable at first, and check for staining. If the spray looks as if it may leave some spotting behind, forgo directly spraying the rosemary onto the furniture and instead spray the area around it.