Citrus deters cats; use citrus spray on concrete, not fabric. Place citrus peels in breathable sachets for carpets. Avoid airtight containers.
Vinegar removes cat urine odor, deters cats, but diluted white vinegar is advised to prevent fabric staining.
Fresh rosemary is potent; chop before sealing. Plant near favorite plants to deter pets. Tuscan Blue, Miss Jessup’s Upright, Blue Spires are aromatic.
Peppermint: year-round growth in warm climates. Use containers to control its invasiveness. Repel cats with fresh or spray form.
Lavender: vibrant flowers, calming scent. Deters cats outdoors, but toxic if eaten. Diffusers irritate cats. Fresh lavender naturally repels cats.
Coffee deters cats, but it's toxic. Secure coffee beans in tin cans with holes to release scent and keep your cat safe. Dark roasts work best.
Eucalyptus: Aussie skin moisturizer, pain reliever, insect repellent. Not safe for cats, but they dislike its smell. Grow in warm areas.
Humane outdoor deterrents for cats: motion-activated sprinklers blast them, scat mats with spikes make areas uncomfortable. No harm to pets.