Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My dog 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, lethargy, and potential dehydration from fluid loss.
Escalation note
The plant contains lectins and wisterin which are toxic to dogs. Seek veterinary attention if your dog has consumed any part of this plant.
First aid at home
Remove any remaining seeds, pods, or plant material from your dog's mouth and reach. Pet Poison Helpline advises against giving hydrogen peroxide or attempting to induce vomiting without first speaking to a poison-control specialist — even though it's sometimes used in dogs, the dose and timing matter. Call Pet Poison Helpline (855-764-7661) or ASPCA Animal Poison Control (888-426-4435) before any home treatment.
What to watch for
ASPCA documents vomiting (sometimes with blood), diarrhea, and depression as the headline signs. Watch for repeated vomiting, bloody stool, dehydration from sustained GI losses, and lethargy or unresponsiveness. Bloody vomiting or signs of dehydration are the high-severity flags.
Time window
Onset and recovery times are not well documented for dogs specifically; wisteria tends to produce GI 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 one or two seed pods can be enough to warrant veterinary care — phone your vet, Pet Poison Helpline (855-764-7661), or ASPCA Animal Poison Control (888-426-4435) before symptoms escalate. Bloody vomiting, lethargy, or persistent diarrhea require in-clinic care, not phone advice.
What this means for your dog
Wisteria is a serious plant for dogs. ASPCA classifies it as toxic, with seeds and pods being the most dangerous part — they hold lectin and wisterin glycoside, which together can cause vomiting (sometimes bloody), diarrhea, and depression. Dogs that have raided seed pods can deteriorate over hours, so treat any suspected ingestion as urgent.
Sources: ASPCA, Pet Poison Helpline.
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.