Are Silver vine toxic to cats?
Yes. Silver vine (<em>Actinidia polygama</em>) is a catnip alternative — non-toxic and often more effective than catnip itself. About 80% of cats respond to silver vine versus 60% to catnip.
What's the full picture?
Silver vine has been used for centuries in Japan and China. Research shows cats respond to it more consistently than to catnip, and the response includes deterrent effects against mosquitoes — cats rub silver vine onto their fur as natural insect repellent.
Like catnip, silver vine isn't harmful — cats self-regulate and stop when the effect wears off. The plant matter can be chewed, rolled on, or ingested without toxicity concerns.
Sold in UK pet shops as dried leaves, powders, sticks, or toys. Quality varies — fruit galls (not the leaf) are considered the most potent form.
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About this guidance
Every entry on this site is compiled from published UK veterinary toxicology sources — International Cat Care, Veterinary Poisons Information Service (VPIS) references, RCVS-registered practice materials, and peer-reviewed feline medicine literature. Where the evidence is mixed, we err on the cautious side because cats are unusually sensitive to many common substances that are harmless to humans and even to dogs.
This is general information written for UK cat owners. It is not personalised veterinary advice for your specific cat, their age, weight, medical history, or the exact exposure you're dealing with. If your cat has eaten something or is unwell, call your vet first. The Animal PoisonLine on 01202 509000 is available 24/7 for a small fee and can tell you whether an emergency visit is needed.
Entries are reviewed and updated as new research emerges. Spotted an error? Let us know — corrections are investigated and applied within 24 hours. For more context on how we work, see about and our full disclaimer.
Last reviewed: · By the What Can My Cat Eat? editorial team