are calla lilies poisonous to cats

Calla lilies are indeed poisonous to cats. They contain calcium oxalate crystals, which cause irritation and pain in the mouth, tongue, and throat when ingested by cats. Symptoms of calla lily poisoning in cats include drooling, vomiting, oral irritation, difficulty swallowing, and potentially swelling that can make breathing difficult. Immediate veterinary attention is recommended if a cat is suspected of ingesting any part of a calla lily.