Is Helenium 'Rotgold' toxic to dogs?

Mildly. The ASPCA lists helenium 'rotgold' as mildly toxic to dogs — a chewing dog typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. Helenium is not individually listed on the ASPCA Toxic and Non-Toxic Plants database, but the genus contains sesquiterpene lactones (notably helenalin) documented by USDA and Cornell as toxic to mammals, with ingestion linked to gastrointestinal irritation, drooling and vomiting. Treat as potentially harmful to cats and dogs and verify with a vet.

Helenium is not individually listed on the ASPCA Toxic and Non-Toxic Plants database, but the genus contains sesquiterpene lactones (notably helenalin) documented by USDA and Cornell as toxic to mammals, with ingestion linked to gastrointestinal irritation, drooling and vomiting. Treat as potentially harmful to cats and dogs and verify with a vet. 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 helenium 'rotgold'.

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: Helenium 'Rotgold' is mildly toxic to cats as well. See the full helenium 'rotgold' 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.