Is Rhododendron 'English Roseum' toxic to dogs?

Yes — rhododendron 'english roseum' 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 Rhododendron as toxic to dogs, cats, and horses. All parts contain grayanotoxins, which cause salivation, vomiting, weakness, low blood pressure, and potentially serious cardiac effects if ingested.

The ASPCA lists Rhododendron as toxic to dogs, cats, and horses. All parts contain grayanotoxins, which cause salivation, vomiting, weakness, low blood pressure, and potentially serious cardiac effects if ingested. 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 rhododendron 'english roseum'.

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: Rhododendron 'English Roseum' is toxic to cats as well. See the full rhododendron 'english roseum' 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.