Is Hydrangea Safe for Pets?
Hydrangea macrophylla
Find out if hydrangea is safe for dogs and cats.
Think your pet ate something toxic?
Call ASPCA Animal Poison Control Center: (888) 426-4435 or view emergency guide
Hydrangea
Hydrangeas are prized for their large, globe-shaped flower clusters, but they are mildly to moderately toxic to pets. The buds and leaves contain cyanogenic glycosides, which can release cyanide when metabolized. Serious poisoning is uncommon but possible with large ingestions.
Is Hydrangea Safe for Dogs?
Contains cyanogenic glycosides that can cause vomiting and diarrhea if large amounts are eaten.
Is Hydrangea Safe for Cats?
Ingestion can lead to vomiting, diarrhea, and depression in cats.
Symptoms to Watch For
- vomiting
- diarrhea
- drooling
- abdominal pain
- lethargy
- depression
What If My Pet Ate Hydrangea?
Monitor your pet. Most cases are mild, but contact your vet if vomiting or diarrhea is severe or persistent.
Safe Alternatives
Sources
- ASPCA
- Pet Poison Helpline
- MSD Veterinary Manual — Toxicology
- ASPCA — Toxic and Non-Toxic Plant List for Cats
- ASPCA — Toxic and Non-Toxic Plant List for Dogs
Vet's Note
PetPilot provides general information for educational purposes. While we reference authoritative veterinary organizations, this page has not been individually reviewed by a veterinarian for your specific pet. Individual animals may react differently based on age, weight, breed, health conditions, and amount consumed. Always consult your veterinarian or a poison control center for personalized advice, especially if your pet is ill, injured, pregnant, nursing, or on medication.