Is Spiraea nipponica 'Snowmound' toxic to dogs?

Mildly. The ASPCA lists spiraea nipponica 'snowmound' 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. Spiraea is not individually listed by the ASPCA on either its toxic or non-toxic plant lists, so a definitive pet-safety status cannot be confirmed; treat with caution and verify with a vet. As an unlisted ornamental, ingestion of foliage or flowers may cause mild gastrointestinal upset (vomiting, diarrhoea) in cats and dogs, so discourage chewing.

Spiraea is not individually listed by the ASPCA on either its toxic or non-toxic plant lists, so a definitive pet-safety status cannot be confirmed; treat with caution and verify with a vet. As an unlisted ornamental, ingestion of foliage or flowers may cause mild gastrointestinal upset (vomiting, diarrhoea) in cats and dogs, so discourage chewing. 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 spiraea nipponica 'snowmound'.

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: Spiraea nipponica 'Snowmound' is mildly toxic to cats as well. See the full spiraea nipponica 'snowmound' 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.