Is Tradescantia (spiderwort) Toxic to Cats?
Tradescantia species
!Irritant
The sap is a strong skin irritant. Cats that brush against it and then groom can get a painful rash.
Tradescantia sap contains compounds that cause contact dermatitis in people and animals. Because cats groom, sap on the coat ends up in the mouth, causing drooling and mouth irritation.
It is a fast-growing trailing houseplant sold everywhere, often in hanging pots where the trailing stems are at cat height.
Which parts are dangerous
- sap
- leaves
- stems
What to watch for in the UK
- Trailing houseplant in hanging pots and on shelves.
- Cuttings root in water and are just as irritant.
- Wear gloves when taking cuttings.
- Rinse sap off the coat rather than letting the cat groom it.
If your cat has already chewed it
- Rinse the mouth and wipe the coat.
- Phone your vet if the cat is drooling persistently or the skin is broken.
- Watch for vomiting.
Signs that need a vet
- skin redness
- drooling
- mouth irritation
- vomiting
Take a photo of the plant, and a cutting if you can do it safely — identification is half of the vet's decision. Out of hours, use your practice's emergency number. This page explains risk; it cannot diagnose your cat and it contains no home treatments.
If your cat has vomited after eating a plant, see the cat vomiting guide and, if there is blood, vomiting blood. For a general red-flag checklist, use sick cat symptoms. If the worry is food rather than a plant, the can cats eat guide covers 36 everyday foods.
Related plants
Browse the full UK plant checklist (72 plants).
Related guides
Can Cats Eat This?
A–Z of 21 everyday foods with a clear verdict
Cat Vomiting
Causes, red flags and when to call the vet
Cat Vomiting Blood
Fresh blood vs coffee grounds, and what to do now
Cat Vomiting White Foam
Empty-stomach foam, hairballs and blockage signs
Why Does My Cat Vomit After Eating?
Regurgitation, scarf-and-barf and slow-feeding fixes
Cat Breathing Problems
Causes, emergency signs and when to call a vet
References
- Cats Protection — poisonous plants and cat health advice
- PDSA Pet Health Hub — cat health conditions
- International Cat Care — advice for cat owners
- Veterinary Poisons Information Service (VPIS)
This guide is for general information only and is not a substitute for veterinary advice. If you are worried about your cat, contact your vet.