One of the things that has worked for me in the past is to save teabags and spray them with a muscle heat spray, like Deep Heat. The tea leaves absorb the strong odour. Place them around the spot in the garden where the cats damage the plants.
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.
Yes, tea leaves can help deter cats. Cats are known to dislike the smell of tea leaves. Thus, a good way to protect crops against feral cats and prevent them from destroying the crops is burying tea leaves in the garden. It is the most economical, ecological and easy way to deal with the problem.
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.
Good idea, except, tea also contains tannins, which are also toxic to cats and dogs, and can lead to liver and kidney failure.
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.
When potting plants, place a few used tea bags on top of the drainage layer at the bottom of the planter before adding soil. The tea bags will help to retain water and will also leach some nutrients into the potting medium.
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.
The smell of vinegar can keep your cats away from some specific areas and items in and around the house. Vinegar can work as an effective cat repellent and training tool. Using Vinegar can make you prevent your cats from going to that your favorite furniture or any other area in the house.
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.
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.
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.
The main offender in tea is caffeine. Caffeine can be toxic to cats, so you should avoid giving any caffeinated teas to your cat.
Cats should never consume lavender because it's toxic and can cause nausea and vomiting. Lavender plants contain linalool and linalyl acetate, which are poisons to cats because they can't process these compounds.
The American Society for the Prevention of Cruelty to Animals states the common lavender plant (Lavandula angustifolia) contains linlool and linalyl acetate, two compounds toxic to cats (and found in other flowers like bergamot). Basically, in any form, lavender can make your kitty sick as heck.
Your cat may like the smell of your chamomile tea, too (and plain, non-caffeinated tea is safe for cats, so he can even have a sip). “Chamomile leaves also attract cats and calm them as well,” Hudson said.
Toxicity to pets
Dogs and cats appear to be more sensitive to the effects of caffeine than people. One or two licks of coffee, tea or soda is unlikely to cause poisoning in most pets. However, ingestion of unused coffee grounds or beans, tea bags, or supplements could cause serious toxicity in dogs or cats.
Your cat loves tea as it soothes the animal's senses. Not only tea, but your cat will also drink coffee and fanta as well. Excess amount of tea, however, could kill your cat. This is especially applicable for chamomile or earl grey varieties.
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.
Use scent to keep the cats away
Cats dislike the smell of rue, lavender and pennyroyal, Coleus canina and lemon thyme. Plant a few of these throughout the garden. (Interplanting can attract pollinators and other beneficial insects too.) Cats steer clear of strong citrus scents.
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.