Is Hemianthus callitrichoides 'Cuba' toxic to dogs?

Mildly. The ASPCA lists hemianthus callitrichoides 'cuba' 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. Hemianthus callitrichoides is not individually listed in the ASPCA Toxic and Non-Toxic Plants database, so its pet status is not formally established; treat as uncertain and verify with a vet before assuming it is safe to ingest. No specific toxic principle is documented, but absence of an ASPCA listing is not a safety guarantee.

Hemianthus callitrichoides is not individually listed in the ASPCA Toxic and Non-Toxic Plants database, so its pet status is not formally established; treat as uncertain and verify with a vet before assuming it is safe to ingest. No specific toxic principle is documented, but absence of an ASPCA listing is not a safety guarantee. 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 hemianthus callitrichoides 'cuba'.

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 in the US, or Animal PoisonLine on 01202 509 000 in the UK 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: Hemianthus callitrichoides 'Cuba' is mildly toxic to cats as well. See the full hemianthus callitrichoides 'cuba' 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.