Can Cats Eat Hydrangea?

No — Hydrangea is mildly toxic to cats

Cats should not eat or be near Hydrangea (Hydrangea macrophylla). It contains cyanogenic glycosides (hydrangin) which can cause vomiting, diarrhea, lethargy in cats.

What Happens if a Cat Eats Hydrangea?

Symptoms typically appear within 2-6 hours:

  • Vomiting
  • Diarrhea
  • Lethargy
  • Depression

My Cat Ate Hydrangea — What Should I Do?

Monitor at home for mild cases. Large ingestion is unlikely due to bitter taste. See vet if symptoms persist.

Key Facts About Hydrangea and Cats

No — mild toxicity

No — mild toxicity

leaves

Hydrangea macrophylla

Cat-Safe Alternatives to Hydrangea

If you love the look of Hydrangea, consider these cat-safe alternatives:

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