Cat Grass, Catnip, and Silvervine: A Guide to Use | Effects and Precautions for Giving to Cats | ブリちょく
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Cat Grass, Catnip, and Silvervine: A Guide to Use | Effects and Precautions for Giving to Cats
Explains the differences and effects of cat grass (oat, wheat grass), catnip, and silvervine. We provide detailed information on how each works, tips on how to give them to your cat, appropriate amounts, and precautions for kittens and senior cats.
Key Takeaways
Explains the differences and effects of cat grass (oat, wheat grass), catnip, and silvervine. We provide detailed information on how each works, tips on how to give them to your cat, appropriate amounts, and precautions for kittens and senior cats.
Most cat owners have likely seen their cat nibble on grass or become engrossed in a particular plant, rolling around contentedly. "Cat grass," "catnip," and "silvervine" are all popular plants for cats, but each has different effects and usage precautions. This article explains the differences among these three types and how to use them correctly.
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"Cat grass" is a general term for grass given to cats to eat and does not refer to a specific plant. Commercial cat grass kits often use oat or young leaves of wheat and barley, and most products sold as "cat grass" in pet shops are these varieties.
Why do cats eat grass?: The exact reason has not yet been scientifically clarified, but there are several theories. Possible reasons include inducing vomiting of hairballs, aiding digestion, relieving constipation, and a vestigial behavior from the wild—such as expelling feathers and bones ingested during grooming. Many cats vomit after eating grass, but this is not because they have eaten something toxic; rather, the grass fibers stimulate the stomach and trigger a reflex response.
Growing and caring for cat grass: Cat grass seeds and cultivation kits can be obtained at home improvement stores and pet shops. After watering, they reach harvest size in about a week. To prevent your cat from eating too much, offer it for only a short time, and after eating, clean it up or place it on a high shelf. Do not give dead or moldy grass. For indoor-only cats, this also provides valuable stimulation from interacting with plants.
The Appeal of Catnip and How It Works
Catnip (Latin name: Nepeta cataria, Japanese name: Inutohacka) is known as a plant that triggers a characteristic "blissful" response in cats. A volatile compound called "nepetalactone" found in the leaves, stems, and seeds acts on receptors in the cat's nasal passages, triggering brain responses related to pleasure and excitement.
Typical reactions: Behaviors such as rubbing the face, rolling the body contentedly, licking, biting, and vocalizing appear. This reaction typically lasts about 5 to 15 minutes, followed by a "refractory period" of about 30 minutes when the cat does not respond.
Some cats don't react: Genetic factors play a large role in catnip response, and it is said that about 30 to 50% of cats do not respond. Kittens under 6 months old often do not respond, but they typically develop a response as they grow.
How to use: Sprinkle dried catnip on toys or use a dedicated spray. While toxicity from overuse is rare, excessive consumption (eating large amounts) can cause temporary vomiting and diarrhea. It can be used when you want to revive interest in toys or encourage exercise.
Silvervine: Characteristics and Japan's Unique Culture
Silvervine (scientific name: Actinidia polygama) is a plant in the same family as kiwi and grows naturally in Japan and East Asia. It contains compounds different from catnip—"silvervine lactone" and "actinidine"—that trigger strong reactions in felids.
Difference from catnip: Silvervine triggers stronger reactions than catnip, and some cats that don't respond to catnip may respond to silvervine. Additionally, recent research (from Iwate University and others) suggests that the cat's behavior of rubbing its body in response to silvervine may be a behavior to apply insect-repelling compounds (iridoids) to its skin to repel mosquitoes.
Form and how to give: It comes in various forms such as wood branches, fruits, powder, and spray. The traditional way is to let your cat chew on dried branches or fruits. One caution is that overuse can cause temporary wobbling and excessive drooling. Additionally, it is safer not to give silvervine to cats with heart disease or neurological disorders, or to pregnant cats.
Precautions and Frequently Asked Questions When Giving These Plants
Can you give it to kittens?: Cat grass can be given from a few months of age without problems, but catnip and silvervine are best given to cats 6 months of age or older, starting with small amounts while observing their reaction. Kittens are more sensitive and may overreact to strong stimulation.
Can you give it daily?: Cat grass can be given daily in small amounts without problems. Catnip and silvervine are recommended to be limited to about 2 to 3 times per week. Daily use can cause habituation to the stimulus and result in weakened responses.
What happens if they eat too much?: Toxicity from consuming large amounts is extremely rare, but overstimulation of the gastrointestinal tract can cause vomiting and diarrhea. Avoid giving it to cats that bark excessively or become aggressive.
Effect on senior cats: Senior cats may experience changes in their reactions due to changes in sensitivity. As their sense of smell declines, they may no longer respond. If catnip or silvervine triggers strong excitement, it is wise to consult with a veterinarian about any risks to the heart.
Choosing When to Use Cat Grass, Catnip, and Silvervine
Type
Strength of Response
Effect
Best Use
Cat Grass
Mild
Dietary fiber, hairball control
Daily small amount supplement
Catnip
Moderate
Pleasure and excitement
Revive toy interest
Silvervine
Strong
Strong pleasure, mosquito repellent
Special treat a few times per week
Cat grass can be used daily as a digestive aid, while catnip and silvervine are most effective when used selectively to encourage exercise or as special treats. Since individual cats respond differently to each, it's best to start with small amounts and see how your cat reacts.
