§ Toxic plants · Colchicaceae · Checked Oct 2026
Is autumn crocus toxic to cats and dogs?
Yes. Autumn crocus (Colchicum autumnale) is toxic to cats and dogs, according to the ASPCA Animal Poison Control Center. Plant Smart rates its effects Critical, level 4 of 4.
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§ 010 · Signs
What to watch for
Signs include mouth irritation, vomiting, diarrhea, shock, damage to several organs, bone marrow suppression, drooling, belly pain, bloody diarrhea, seizures, liver failure, kidney failure, weakness and collapse. Signs can start within hours; some take a day or more to show.
§ 020 · If it happened
What to do if your pet ate it
Call your vet or a pet poison hotline straight away, even if your pet seems fine: the ASPCA Animal Poison Control Center, (888) 426-4435, or Pet Poison Helpline, (855) 764-7661. Both are open 24 hours and charge a fee. Have the plant or a photo of it to hand, and don’t make your pet vomit unless a vet tells you to.
§ 030 · Same family
Other Colchicaceae plants toxic to pets
Autumn crocus belongs to the Colchicaceae family. ASPCA lists these relatives too.
§ 040 · Questions
Questions about autumn crocus and pets
Is autumn crocus toxic to cats?
Yes. ASPCA lists autumn crocus as toxic to cats.
Is autumn crocus toxic to dogs?
Yes. ASPCA lists autumn crocus as toxic to dogs.
What happens if my pet eats autumn crocus?
Signs include mouth irritation, vomiting, diarrhea, shock, damage to several organs, bone marrow suppression, drooling, belly pain, bloody diarrhea, seizures, liver failure, kidney failure, weakness and collapse. Plant Smart rates it Critical, level 4 of 4.
What should I do if my pet ate it?
Call your vet or a pet poison hotline right away, even before signs appear: the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661. Both charge a fee. Have the plant, or a photo of it, to hand.
What else is autumn crocus called?
Autumn crocus is also sold or known as autumn crocus.