Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Wisteria - what should I do?
Wisteria spp.
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Signs to watch for
Vomiting, diarrhea, abdominal pain, and depression.
Escalation note
Ingestion of seeds or pods can lead to significant gastrointestinal upset. Please contact your veterinarian or a pet poison control center immediately if you suspect ingestion.
First aid at home
Remove your cat from the plant and any remaining seeds or pods. Pet Poison Helpline is clear that there is no safe way to induce vomiting at home in cats and that hydrogen peroxide should never be given to cats. Call Pet Poison Helpline (855-764-7661) or ASPCA Animal Poison Control (888-426-4435) before attempting any home treatment.
What to watch for
ASPCA-documented signs include vomiting (sometimes with blood), diarrhea, and depression. Pet Poison Helpline expands the cat-specific picture to include severe agitation, aggression, drooling, tremors, and respiratory or cardiovascular depression. Bloody vomiting, tremors, or laboured breathing are the high-severity flags.
Time window
Onset and recovery times are not well documented for cats specifically; the plant tends to produce signs within a few hours of ingestion, and severe cases can persist beyond 24 hours under veterinary supervision.
When to call the vet
Call immediately. Even a single seed or pod warrants a phone call to your vet or Pet Poison Helpline (855-764-7661) or ASPCA Animal Poison Control (888-426-4435). Don't wait for symptoms — by the time bloody vomiting, tremors, or depression appear, your cat needs urgent care.
What this means for your cat
Wisteria is one of the more dangerous plants on this list for a cat. ASPCA classifies it as toxic, and the seeds and pods are the worst part — they concentrate two toxins, lectin and wisterin glycoside, that can drive vomiting (sometimes bloody), diarrhea, and depression. Pet Poison Helpline adds that severe cases in cats can include agitation, tremors, and respiratory or cardiovascular depression, so this is not a 'wait and see' plant.
Sources: ASPCA, Pet Poison Helpline.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.