Is Zantedeschia 'Edge of Night' toxic to cats?

Yes — zantedeschia 'edge of night' is toxic to cats according to the ASPCA. Keep it well away from any cat that chews plants; reactions can be significant. The ASPCA lists calla lily (Zantedeschia) as toxic to cats and dogs. The toxic principle is insoluble calcium oxalates; chewing any part releases raphide crystals causing oral and lip burning, intense drooling, vomiting and difficulty swallowing. Note this is gastrointestinal irritation, not the kidney toxicity of true lilies.

The ASPCA lists calla lily (Zantedeschia) as toxic to cats and dogs. The toxic principle is insoluble calcium oxalates; chewing any part releases raphide crystals causing oral and lip burning, intense drooling, vomiting and difficulty swallowing. Note this is gastrointestinal irritation, not the kidney toxicity of true lilies. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to zantedeschia 'edge of night'.

Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

The ASPCA classification Growli uses applies to both cats and dogs: Zantedeschia 'Edge of Night' is toxic to dogs as well. See the full zantedeschia 'edge of night' pet-safety guide for both species.

For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.