Is Begonia grandis subsp. evansiana toxic to dogs?

Yes — begonia grandis subsp. evansiana is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. The ASPCA lists Begonia as toxic to cats, dogs and horses. The toxic principle is soluble calcium oxalates, most concentrated in the underground tubers, which on this species are especially prominent. Ingestion causes oral irritation, drooling, vomiting and difficulty swallowing; large amounts can cause kidney failure in grazing animals.

The ASPCA lists Begonia as toxic to cats, dogs and horses. The toxic principle is soluble calcium oxalates, most concentrated in the underground tubers, which on this species are especially prominent. Ingestion causes oral irritation, drooling, vomiting and difficulty swallowing; large amounts can cause kidney failure in grazing animals. 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 dog has had access to begonia grandis subsp. evansiana.

Stay calm. Remove any plant from your dog'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: Begonia grandis subsp. evansiana is toxic to cats as well. See the full begonia grandis subsp. evansiana pet-safety guide for both species.

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