Silvervine is a climbing vine that grows wild in the mountain forests of Japan, Korea and China. Its botanical name is Actinidia polygama; in Japan it is called matatabi, and it has been given to cats there for centuries. It is a close relative of the kiwi vine, and it gets its English name from the pale, silvered cast that appears on its leaf tips.
What the response actually looks like
A cat meets a silvervine stick and, within a few seconds, usually starts rubbing its face and chin against it. Then comes rolling, holding the stick with the front paws, kicking with the back ones, and chewing. It looks undignified. It is supposed to.
Sessions tend to run five to fifteen minutes. Cats stop on their own — they self-regulate, and they're good at it. Afterwards most cats settle into a mellow, nap-adjacent calm. That second half of the response is the part owners tend to notice more than the first.
What the research says
The most useful study on this is Bol et al., published in BMC Veterinary Research in 2017. The researchers tested a large group of domestic cats against silvervine, catnip, Tatarian honeysuckle and valerian root.
Two findings matter here. About 80% of the cats tested responded to silvervine — a higher response rate than catnip. And of the cats that did not respond to catnip, roughly three out of four still responded to silvervine.
That second number is the interesting one. Catnip indifference is common — around one cat in three gets nothing from it — and those owners tend to conclude their cat simply isn't a toy cat. Usually the cat just hasn't met the right plant.
Why the gall fruit is prized
Silvervine produces two kinds of fruit. The ordinary one is a smooth, elongated berry. The other forms when a small insect lays eggs in the developing flower and the plant grows a knobbled, irregular gall around it.
Traditionally, this gall fruit is considered the most potent part of the plant — the part richest in the compounds cats respond to. It's the reason a stick with gall fruit worked into it tends to get a stronger reaction than plain wood alone.
Silvervine and catnip, side by side
| Silvervine | Catnip | |
|---|---|---|
| Plant | Actinidia polygama — a woody climbing vine | Nepeta cataria — a herb in the mint family |
| Active compounds | Several iridoids, including nepetalactol | Chiefly nepetalactone |
| Response rate | About 80% of cats | Lower than silvervine in the same study |
| Works on catnip non-responders | About three out of four | Not applicable |
| Usual form | Chewable wood, gall fruit, powder | Dried leaf |
They are genuinely different plants with different chemistry, which is why one can work when the other doesn't.
The dental part, stated plainly
Chewing firm, fibrous material gives teeth a mechanical assist against plaque buildup. The abrasion of gnawing on silvervine wood and a sisal wrap does some of the work a toothbrush would.
That is the whole mechanism. It is not a treatment, it does not replace a veterinary dental cleaning, and anyone quoting you a percentage of bacteria eliminated is making it up. It's a useful side effect of a cat doing something it already wants to do.
A fun aside
In 2021, researchers publishing in Science Advances identified nepetalactol as a key compound behind the response, and found that when cats rub their faces in these plants they transfer the compound onto their fur — where it repels mosquitoes. The rolling may be less silly than it looks.
- Bol, S., Caspers, J., Buckingham, L., et al. "Responsiveness of cats (Felidae) to silver vine (Actinidia polygama), Tatarian honeysuckle (Lonicera tatarica), valerian (Valeriana officinalis) and catnip (Nepeta cataria)." BMC Veterinary Research 13, 70 (2017).
- Uenoyama, R., Miyazaki, T., Hurst, J.L., et al. "The characteristic response of domestic cats to plant iridoids allows them to gain chemical defense against mosquitoes." Science Advances 7, eabd9135 (2021).
- Chewing supports dental hygiene; it is not a substitute for veterinary care.