Ezina · A Field Manual for Plant Care · United States Vol. I · Ed. 2027 · Proof copy

§ Toxic plants · Ranunculaceae · Checked Oct 2026

Is Christmas-rose toxic to cats and dogs?

Yes. Christmas-rose (Helleborus niger) is toxic to cats and dogs, according to the ASPCA Animal Poison Control Center. Plant Smart rates its effects Moderate, level 2 of 4.

Get a permanent discount if you join Early Access. iPhone and Android, in the contiguous U.S.

Christmas-rose (Helleborus niger)
Photo: (c) Andy, some rights reserved (CC BY), uploaded by Andy, via iNaturalist

§ 010 · Signs

What to watch for

Signs include drooling, belly pain, diarrhea and dullness or depression. 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 Ranunculaceae plants toxic to pets

Christmas-rose belongs to the Ranunculaceae family. ASPCA lists these relatives too.

§ 040 · Questions

Questions about Christmas-rose and pets

Is Christmas-rose toxic to cats?

Yes. ASPCA lists Christmas-rose as toxic to cats.

Is Christmas-rose toxic to dogs?

Yes. ASPCA lists Christmas-rose as toxic to dogs.

What happens if my pet eats Christmas-rose?

Signs include drooling, belly pain, diarrhea and dullness or depression. Plant Smart rates it Moderate, level 2 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 Christmas-rose called?

Christmas-rose is also sold or known as black hellebore.

Changes

5 Oct 2026: page drafted.

Sources

ASPCA Animal Poison Control Center: Toxic and Non-Toxic Plant List.

Plant Smart: Plant Smart: plants toxic to pets.

Photo: (c) Andy, some rights reserved (CC BY), uploaded by Andy, via iNaturalist, source.

Checked Oct 2026.