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Is Peony Toxic to Cats?

⚠️ Mildly ToxicSeverity: Mild
✅ 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.
Peonies are mildly toxic to cats. Chewing petals, leaves or especially the roots can cause drooling and an upset stomach.

Also known as: Common Peony, Garden Peony, Paeonia lactiflora · Paeonia lactiflora

What makes it toxic

Paeonol and paeoniflorin, phenolic compounds concentrated in the roots and present throughout the plant, which irritate the digestive tract.

Warning signs to watch for

Drooling, vomiting, diarrhea and mild lethargy within a few hours of chewing foliage or flowers.

What to do if your cat eats it

Remove access, offer water and monitor. Call your vet only if vomiting persists, blood appears, or the cat refuses food the next day.

Common questions

Are cut peonies in a vase risky?

The same mild toxicity applies, so keep bouquets where a cat cannot chew the blooms or drink the water.

Is the root more dangerous than the flowers?

Yes — the root bark carries the highest paeonol levels, but a house cat rarely digs that deep. Flowers and leaves are the usual exposure.

My cat sniffed the bouquet — fine?

Completely. Only actual chewing or eating matters with this plant.

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.