Is mistletoe toxic to dogs?
ASPCA lists American mistletoe as toxic to dogs, and European mistletoe has no ASPCA entry. The Pet Poison Helpline considers the European kind of even more concern.
Good to know: Store-bought sprigs sometimes have plastic berries, which can cause a blockage too (Pet Poison Helpline).
Did your dog eat some?
Call your vet or an emergency vet clinic right away, even if your dog seems fine. Tell them what your dog ate, how much and when.
- ASPCA Animal Poison Control: (888) 426-4435 (a fee may apply)
- Pet Poison Helpline: (855) 764-7661 (a fee may apply)
- Don’t make your pet vomit unless a vet tells you to.
Better choices, for example
Questions
My dog ate mistletoe. What should I do?
Call your vet or an emergency vet clinic right away, even if your dog seems fine. You can also call ASPCA Animal Poison Control at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661 (a fee may apply). Don’t make your dog vomit unless a vet tells you to.
Is mistletoe toxic to cats?
Yes, toxic. ASPCA lists American mistletoe as toxic to cats, and Cornell includes mistletoe among toxic plants. European mistletoe has no ASPCA entry; the Pet Poison Helpline considers it of more concern.
Sources
- ASPCA Toxic and Non-toxic Plants – Mistletoe "American"
- Pet Poison Helpline – Holiday Plants
- Pet Poison Helpline – Holiday Pet Poison Myths Debunked
- Pet Poison Helpline – Deck the Halls: Are Holiday Plants Toxic?
- Merck Veterinary Manual – Poisonous Houseplants and Ornamentals (table)
Last checked: October 2026