Orange and lemon peels (cats dislike citrus smells), cayenne pepper, coffee grounds, pipe tobacco, lavender oil, lemon grass oil, citronella oil, peppermint oil, eucalyptus oil, & mustard oil.
Citrus or lemon scents (orange peels, lemon peels), garlic, ammonia, vinegar, coffee grinds, pipe tobacco, mustard, citronella, or eucalyptus all deter cats as well.
Vinegar as a cat repellent
Spraying Outdoors – Straight or diluted vinegar can be sprayed around the edges of a garden, and on plants, fences, posts and garden décor to keep cats away. Concentrate the spray on areas that the cats frequent or that you particularly want to protect.
As a general rule, cats are sensitive when it comes to smells, but there are a few scents they hate that might just surprise you. They can't stand citrus and as much as you might love the smell of fresh herbs, cats hate rosemary and thyme. Banana and mustard are a big no-no too, as well as lavender and eucalyptus.
Texture: Sticky paper, aluminum foil, heavy plastic or a plastic carpet runner (knubby side up) can be placed in areas you want to be off limits. Cats hate walking on these surfaces.
Toxicity to pets
Small ingestions of a few leaves or low concentration eucalyptus oil leads to mild gastrointestinal distress, but ingestion of highly concentrated eucalyptus oil has been associated with severe signs including seizure, tremor, and, rarely, acute renal injury.
Mix together lemon juice, rosemary and white vinegar - three things cats detest. Put the liquid in a spray bottle so it's easy to use around the garden. Simply spray near where the cats spend time - on planters, the patio, or even inside.
Coffee Grounds
The strong smell of coffee can be enough to keep cats off of your garden. Simply take your fresh, wet coffee grounds and distribute them around your borders and plants where you want to discourage feline attention.
Pest control products such as moths are frequently used in gardens to keep cats at bay. Cats find it irritating when they smell mothballs. However, not all cats will flee.
Cover Your Counters With Aluminum Foil
Many pet owners and experts recommend putting aluminum foil on countertops to curb your cat's counter-hopping enthusiasm. The combination of the noise of crinkled foil and the unpleasant feeling may be enough to keep them off the counter.
Likewise, geranium and eucalyptus plants give off an odor that cats dislike. Keep in mind that lavender, geranium, and eucalyptus are all somewhat toxic to cats; if ingested, they can cause excess salivation, nausea, vomiting, anorexia, depression, or dermatitis.
Peppermint oil is highly toxic to cats.
Without the enzymes required to break down phenols, cats exposed to peppermint oil can experience: Liver damage. Breathing difficulties. Wobbliness and seizures.
To keep cats away from gardens, flower beds, or specific areas of property, scatter fragrant items that don't appeal to a cat's sense of smell, like fresh orange or lemon peels, organic citrus-scented sprays, vinegar, or oil of lavender, lemongrass, citronella, or eucalyptus.
You can try orange and lemon peels (cats dislike citrus scents), the herb rue which can also be planted live, cayenne pepper, coffee grounds, pipe tobacco and various oils, including lavender, lemon grass, citronella, peppermint, eucalyptus and mustard.
Squeeze 2 drops of lemon essential oil, 2 drops of wild orange essential oil, and 2 drops of lavender essential oil to the bottle. Cats are more sensitive to scents than humans, so essential oils with strong odors, such as citrus and lavender, can help repel them.
Citronella oil is a homemade cat repellent that many people have had success with. Citronella is best known as a mosquito repellent, but cats find the Citronella odor to be distasteful. Simply mix one part Citronella oil to four parts water and spray liberally in the troubled areas.
While it is not deadly, lavender is toxic for cats. Lavender contains linalool and linalyl acetate, which cats cannot process in their livers. This means that consuming too much lavender can lead to liver damage.
All citrus fruits (grapefruit, oranges, limes and lemons) are mildly toxic to cats. Consider every part of the fruit, from the seeds to the fruit and skin, to be toxic for your feline. The substances found in lemons (Citrus limon) is toxic to your cat, even though you and your family can safely ingest lemons.
If you know your cat has eaten some eucalyptus or has been exposed to the oil, call your vet ASAP. While symptoms of eucalyptus poisoning can show up shortly after being exposed, they can also take several hours to develop, so don't assume your cat is OK just because he doesn't have any symptoms.
Cats who are walked on a leash can become stressed and agitated as they “lose control” over themselves as you guide them. What we would have called an “enrichment” activity for our feline friends has proven to be doing more harm than good.
This is because walking outdoors exposes cats to unfamiliar scents they may find threatening, and to potentially frightening experiences, including dogs, strange people, loud noises and cars.