Plant toxicology for dogs
Is Autumn Crocus toxic to dogs?
Colchicum autumnale · Colchicaceae
Verdict: Is Autumn Crocus toxic to dogs?
Yes — Autumn Crocus is toxic to dogs. Autumn Crocus (Colchicum autumnale) can make a dog ill. Risk depends on the amount, plant part, body size and the individual animal.
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Contact a veterinarian immediately
Do not wait for symptoms and do not induce vomiting unless a veterinary professional tells you to. Take a plant sample or clear photo with you.
- 1Contact an emergency veterinarian or pet poison service immediately.
- 2Do not induce vomiting unless a veterinary professional instructs you to.
- 3Take a plant sample, label, or clear photo with you.
Possible signs after Autumn Crocus exposure include:
- Bloody vomiting and diarrhoea
- Abdominal pain
- Shock
- Liver and kidney failure
- Bone-marrow suppression
Typical onset: Stomach signs early; organ and bone-marrow effects delayed 2–7 days
Colchicine, a mitotic inhibitor
Veterinary sources
Reviewed by Dr. Patti McCartney, Animal Naturopathic Doctor. This educational guide supports, but does not replace, diagnosis or treatment from a licensed veterinarian. Risk varies by dose, plant part, body size and health history.