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.
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.
Humane deterrents are the best approach.... Smells that repel cats: To keep cats out of yards or gardens, plant the herb rue or sprinkle dried rue. 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.
Rosemary, thyme, and rue
Cats certainly turn their noses up at certain common herbs, including rosemary, rue, and thyme. Rosemary and thyme are typically harmless to cats, while rue may cause a negative reaction (as it can in humans, as well).
Cats are more sensitive to scents than humans, so essential oils with strong odors, such as citrus and lavender, can help repel them. You can substitute lime, peppermint, and/or eucalyptus for the lemon, wild orange, and lavender if you prefer.
Cats dislike eucalyptus, lavender, lemongrass, and peppermint – just choose the ones you don't mind the scent of yourself. 2. Shake the bottle up and spray the solution on the leaves of your plant and into the soil. 3.
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.
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.
Many liquid potpourri products and essential oils, including oil of cinnamon, citrus, pennyroyal, peppermint, pine, sweet birch, tea tree (melaleuca), wintergreen, and ylang ylang, are poisonous to cats. Both ingestion and skin exposure can be toxic.
Lavender (Lavandula)
Luckily, lavender plants come with a scent that's nice for us but unappealing for felines. These purple flowers are evergreen, so they act as a year round deterrent. Choose the tall varieties and plant them at the front of your borders as cats won't jump over if they can't see where they'll land.
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.
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.
Citrus – I bet you knew this would be top of the list! Cats really don't like citrus, whether oranges, lemon, grapefruit, etc. When you're trying to train your cat away from a certain spot in your house, citrus is often the recommended deterrent.
Keeping Fleas and Ticks Away
To make your own flea and tick repellent, mix one part vinegar with one part water and spray it on your pet's fur. You can also add a few drops of vinegar to your pet's drinking water to help repel fleas and ticks from the inside out.
Cats, being fairly territorial, are unlikely to feel comfortable doing their business in a place that smells like another, much larger, feline already frequents it. Put down extra strength hot chilli powder. It annoys cats' paws and whiskers without causing them serious harm. They'll stay well away.
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.
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.
Some of the most toxic food for cats include onions & garlic, raw eggs & meat, chocolate, alcohol, grapes and raisins. Avoid feeding your cat table scraps, especially around the holidays, as these may contain potentially toxic ingredients.
Try orange and lemon peels, cayenne pepper, coffee grounds, lavender oil, lemon grass oil, citronella oil, peppermint oil, eucalyptus oil, and mustard oil. You can either sprinkle drops directly onto your flower beds or soak a cotton wool around it and place at entry points.
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, coffee grounds, vinegar, pipe tobacco, or oil of lavender, lemongrass, citronella, or eucalyptus.
Scented litter
A thin layer of baking soda placed on the bottom of the box will help absorb odors without repelling your cat.
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.
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.