Can Dogs Eat Rhododendron?

No — Rhododendron is toxic to dogs

Dogs should not eat or chew on Rhododendron (Rhododendron spp.). It contains grayanotoxins which can cause vomiting, diarrhea, weakness in dogs.

What Happens if a Dog Eats Rhododendron?

Symptoms typically appear within 1 to 6 hours:

  • Vomiting
  • Diarrhea
  • Weakness
  • Cardiac failure
  • Coma
  • Death

My Dog Ate Rhododendron — What Should I Do?

Veterinary emergency. Even small amounts can cause cardiac symptoms. Immediate vet care is critical.

This is a veterinary emergency. Do not wait for symptoms. Call ASPCA Poison Control (888) 426-4435 or your emergency vet immediately.

Key Facts About Rhododendron and Dogs

No — severe toxicity

No — severe toxicity

all parts

Rhododendron spp.

Safe Alternatives for Dog Owners

If you love the look of Rhododendron, consider these dog-safe alternatives:

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline, Merck Veterinary Manual. View full Rhododendron profile.