peony

Are Peonies Bad For Dogs? 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.). Are peony petals poisonous to dogs? Peonies. As