All plants › Cats › Columbine

Is Columbine Toxic to Cats?

☠️ 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.
Yes, columbine is mildly toxic to cats. Eating the flowers, leaves or seeds causes drooling, vomiting and diarrhea.

Also known as: Aquilegia, Granny’s Bonnet, Crowfoot · Aquilegia vulgaris

What makes it toxic

Cyanogenic glycosides and related irritant compounds in all plant parts, with higher concentration in seeds and roots. In quantity they can depress the nervous system.

Warning signs to watch for

Drooling, vomiting, diarrhea and mild lethargy within hours; large ingestions of seeds can add weakness and incoordination.

What to do if your cat eats it

Remove plant material and offer water. Call your vet for persistent GI signs, and promptly for any known seed or root chewing.

Common questions

Are columbine seeds the worst part for cats?

Yes, seeds and roots carry the highest load of the glycosides. Cats rarely dig roots, but shaking seed heads down is plausible in a garden cat.

Is one nibble of a Granny’s Bonnet bloom serious?

No. A nibble usually stops at drooling and maybe one vomit. Monitor and call only if signs continue.

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.