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Is Plum Tree Toxic to Cats?

☠️ ToxicSeverity: Moderate
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.
Yes, plum tree is toxic to cats. The leaves, stems and pits contain cyanogenic glycosides, and wilted leaves are the most dangerous form.

Also known as: Prunus Domestica, European Plum · Prunus domestica

What makes it toxic

Cyanogenic glycosides in wilted leaves, stems and the pit kernel, which release hydrogen cyanide when the tissue is chewed. Ripe fruit flesh is safe.

Warning signs to watch for

Drooling, vomiting, labored breathing, bright red gums and weakness within hours of chewing leaves, stems or a cracked pit.

What to do if your cat eats it

Establish what was eaten. Fruit flesh needs only monitoring; leaf, stem or pit chewing means a call to the vet now, with breathing trouble treated as an ER emergency.

Common questions

Can a cat eat a piece of ripe plum?

Yes, the flesh is non-toxic in small amounts. Remove the pit and keep the cat away from fallen leaves and branches.

What makes wilted plum leaves so much more dangerous?

As Prunus leaves wilt, cyanogenic compounds concentrate. A storm-fallen branch is far riskier than fresh growth on the tree.

More plants checked for cats

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.