Is Korean rhododendron toxic to dogs?

Yes — korean rhododendron is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. Rhododendron mucronulatum contains grayanotoxins consistent with the Rhododendron genus. ASPCA lists Rhododendron spp. as toxic to dogs, cats, and horses. The flowers appear before leaves in late winter when pets may be more likely to investigate — keep animals away from the plant during bloom.

Rhododendron mucronulatum contains grayanotoxins consistent with the Rhododendron genus. ASPCA lists Rhododendron spp. as toxic to dogs, cats, and horses. The flowers appear before leaves in late winter when pets may be more likely to investigate — keep animals away from the plant during bloom. 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 korean rhododendron.

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: Korean rhododendron is toxic to cats as well. See the full korean rhododendron 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.