Are hydrangeas toxic to cats or dogs?
Hydrangea — Cats: Poisonous · Dogs: Poisonous · Moderate severity The leaves and flowers contain cyanogenic glycosides. Symptoms are usually primarily gastrointestinal. Remove the plant and watch for symptoms. If vomiting or excessive lethargy take him to see a veterinarian.
Other names: hydrangea flowers
English nameHydrangea
Scientific nameHydrangea arborescens
catToxic
dogToxic
Symptoms that may be experienced
- Vomiting
- Diarrhea
- lethargic, loss of appetite
What should I do?
The leaves and flowers contain cyanogenic glycosides. Symptoms are usually primarily gastrointestinal. Remove the plant and watch for symptoms. If vomiting or excessive lethargy take him to see a veterinarian.
Used for making preliminary decisions. not a judgment If you eat the plant or have any unusual symptoms, contactAnimal clinic 24 hrs.or veterinarian immediately
Last checked 2026-07-03