Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Plum - what should I do?
Prunus domestica
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, difficulty breathing, and potential shock.
Escalation note
Ingestion of plant parts containing cyanogenic glycosides can lead to cyanide poisoning. Contact your veterinarian immediately if you suspect your cat has chewed on or ingested any part of the plant.
What to watch for
Vomiting and diarrhea may come first; the cyanide signature to take seriously is difficulty breathing, panting, brick-red gums, dilated pupils, weakness, and collapse (shock).
Time window
Cyanide signs can appear within minutes to about an hour of kernel ingestion and progress within hours; mild leaf-only GI signs typically resolve in 24-48 hours with supportive care.
When to call the vet
Call immediately if a pit was chewed open or any leaves or wilted plant material were eaten. Any labored breathing, gum-color change, or collapse is a same-minute emergency.
What this means for your cat
Cats that bite plum leaves, stems, or a crushed pit are at risk of cyanide poisoning from the plant's cyanogenic glycosides. The flesh of the ripe fruit is not the concern — cats rarely chew open a hard pit. ASPCA flags wilting plant material as especially dangerous.
Sources: ASPCA, Kew Plants of the World Online (no first-aid guidance).
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.