Question: are peonies poisonous to cats?
Answer: Toxicity to pets Peony, an early spring blooming shrub, has beautiful, large, colorful flowers (e.g., pink, white, red, etc.). This plant contains the toxin, paeonol, which is concentrated in the bark. When ingested in large amounts, it can cause gastrointestinal distress (e.g., vomiting, diarrhea, etc.).