Is Fairy Thimbles toxic to cats?

Mildly. The ASPCA lists fairy thimbles as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. Campanula species are generally listed as non-toxic to cats and dogs by the ASPCA; however, ingestion of any plant material may cause mild gastrointestinal irritation such as vomiting or diarrhoea. Classified as mildly-toxic here as a precautionary measure in the absence of a specific ASPCA entry for this species.

Campanula species are generally listed as non-toxic to cats and dogs by the ASPCA; however, ingestion of any plant material may cause mild gastrointestinal irritation such as vomiting or diarrhoea. Classified as mildly-toxic here as a precautionary measure in the absence of a specific ASPCA entry for this species. 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 fairy thimbles.

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: Fairy Thimbles is mildly toxic to dogs as well. See the full fairy thimbles 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.