Is Ceanothus americanus toxic to dogs?

Mildly. The ASPCA lists ceanothus americanus 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. Ceanothus is not individually listed on the ASPCA toxic or non-toxic plant database, so its status is uncertain and should be confirmed with a vet before assuming it is safe. The dried leaves have a folk history as a caffeine-free tea and it is not considered seriously poisonous, but ingestion of plant material may cause mild gastrointestinal upset; discourage pets from grazing it.

Ceanothus is not individually listed on the ASPCA toxic or non-toxic plant database, so its status is uncertain and should be confirmed with a vet before assuming it is safe. The dried leaves have a folk history as a caffeine-free tea and it is not considered seriously poisonous, but ingestion of plant material may cause mild gastrointestinal upset; discourage pets from grazing it. 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 ceanothus americanus.

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: Ceanothus americanus is mildly toxic to cats as well. See the full ceanothus americanus 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.