Is Mistletoe Toxic to Dogs?

Yes — Mistletoe is moderately toxic to dogs

Mistletoe toxicity is commonly overestimated — while it can cause serious effects with large ingestion, most holiday exposures involve small amounts and result in only mild GI upset. Still, keep it well away from pets.

Symptoms in Dogs

If your dog eats Mistletoe, watch for these symptoms (onset: 1-4 hours):

Vomiting
Diarrhea
Difficulty breathing
Low heart rate
Collapse (large ingestion)

What To Do

See vet if more than a few berries ingested. Monitor cardiovascular signs. Most holiday mistletoe exposures are mild.

Dog-Safe Alternatives to Mistletoe

✓ Christmas Cactus ✓ Orchid ✓ African Violet

Quick Facts

Scientific Name

Phoradendron spp.

Also Toxic to Cats?

Yes (moderate)

Toxic Compound

Lectins (phoratoxin), polysaccharides

Toxic Parts

all parts, especially berries

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Mistletoe toxicity profile.