Rosemary in soaps and cleaners can have an odor-neutralizing effect. Adding a few drops of rosemary essential oil to cleaning solutions can reduce pet odor. Rosemary is found in all natural flea repellents. Rosemary, fresh and dried, is safe for pets to eat, according to "The Whole Dog Journal."
If you are growing fresh rosemary, you could have trouble with your pets chewing on the plants. Keep potted rosemary out of the reach of pets, or fence it off so they cannot reach it, according to "Green Guide."
If a dog or cat eats rosemary and is unused to it or eats a large amount, it could experience a gastric upset. This should pass quickly. You can find a list of plants that are dangerous for pets online, including at ASPCA.org, according to "Cat Owner's Home Veterinary Handbook."