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Is Autumn Crocus Toxic to Cats?

☠️ ToxicSeverity: Severe
✅ 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, autumn crocus is dangerously toxic to cats and is a true emergency. It contains colchicine, which attacks dividing cells and can cause multi-organ failure.

Also known as: Meadow Saffron, Naked Lady · Colchicum autumnale

What makes it toxic

Colchicine, a potent antimitotic alkaloid present in every part of the plant and concentrated in the bulbs. It poisons rapidly dividing cells in the gut, bone marrow and kidneys.

Warning signs to watch for

Early drooling, vomiting, diarrhea and bloody stools within hours, followed by kidney failure, bone marrow suppression, seizures and death days later if untreated. Early signs may briefly improve before organ failure begins.

What to do if your cat eats it

Go to an emergency veterinary clinic immediately even if only a leaf or petal was chewed. Tell the vet the plant name; early decontamination and supportive care save lives.

Common questions

Is autumn crocus the same as spring crocus?

No. Spring crocus (Crocus vernus) is mildly toxic at most, but autumn crocus (Colchicum) contains colchicine and is far more dangerous. Both should still be kept away from pets.

Can a cat survive eating autumn crocus?

Survival is possible with very rapid treatment, but delay is often fatal. There is no antidote for colchicine, so emergency care within the first hours is critical.

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.