are azaleas poisonous to dogs

Azaleas are highly poisonous to dogs. The plant contains toxins called grayanotoxins that affect the heart, muscles, and nerves. Even small amounts (as little as 0.2% of a dog's body weight) can cause symptoms such as vomiting, diarrhea, excessive drooling, weakness, tremors, abnormal heart rate, seizures, and potentially death. Immediate veterinary care is necessary if a dog ingests any part of an azalea plant.