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Can Cats Eat wisteria?

The short answer for Cats: Wisteria vines, flowers and seed pods have toxic lectins and cyanogenic glycosides. When a dog or cat chews the foliage, they may develop oral burning, vomiting, diarrhea and lethargy. Severe cases can lead to low blood pressure and collapse.

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Toxic or dangerous

NO — do not feed — wisteria for Cats

What to do if your pet ate it

Contact your vet or a poison line right away, report how much wisteria was eaten and your pet's weight, and keep any packaging or leftovers. Do not induce vomiting unless your vet tells you to.

Signs to watch for

  • Vomiting and diarrhoea
  • Lethargy and weakness
  • Loss of appetite
  • Severe: tremors, breathing trouble, collapse

If your pet shows vomiting, lethargy or any unusual behaviour after eating wisteria, go to the nearest emergency vet immediately.

Dogs and cats carry the same rating (Do not feed), so the notes below hold for either pet.

Other foods that are toxic or dangerous

The full A–Z food list groups every food by verdict for each species.

Why these cautions matter

Stone-fruit pits and some seeds release cyanide when crushed, and quite apart from that they are a choking and blockage hazard.

Frequently asked questions

Can cats eat wisteria?

NO — do not feed. Wisteria vines, flowers and seed pods have toxic lectins and cyanogenic glycosides. When a dog or cat chews the foliage, they may develop oral burning, vomiting, diarrhea and lethargy. Severe cases can lead to low blood pressure and collapse.

What if my cat already ate wisteria?

Call your vet or a poison line now with the amount of wisteria eaten and your cat's weight, and do not induce vomiting unless a vet tells you to. If wisteria was eaten and you then see vomiting, lethargy, tremors or breathing changes, go straight to the nearest emergency clinic.

Is there a safe amount of wisteria for cats?

There is no accepted safe dose of wisteria for cats; it is classed as toxic or dangerous, and reactions vary with the individual animal, so it is not something to feed at any amount.

How often can cats have wisteria?

wisteria is not something to feed at any interval; it stays off the menu entirely.

What are safer treats than wisteria for cats?

Pick from the safe list instead — Lobster or Mussels carry none of the risk that wisteria does, and they work better as an everyday treat.

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How about Dogs eating wisteria? Toxic or dangerous — NO — do not feed