Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Japanese Yew - what should I do?
Taxus sp.
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
Tremors, difficulty breathing, vomiting, diarrhea, and potential cardiac arrhythmias.
Escalation note
Ingestion is considered a medical emergency. Contact your veterinarian or an animal poison control center immediately if you suspect your cat has consumed any part of this plant.
What to watch for
Tremors, difficulty breathing, and vomiting are the signs ASPCA lists for all species. The most dangerous progression is sudden collapse from acute heart failure, which can occur with little warning.
Time window
Exact onset and duration are not well documented; sudden death from acute heart failure is possible.
When to call the vet
Call immediately. Any suspected ingestion of yew is a medical emergency — contact your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 right away.
What this means for your cat
Japanese yew is extremely dangerous to cats — every part of the plant, including the bright red berries, contains taxine alkaloids that disrupt cardiac electrical activity. ASPCA lists yew as toxic to all species, with sudden cardiac death the most serious outcome. Cats may show fewer overt early signs than dogs.
Sources: ASPCA (no home first-aid guidance).
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.