Is Mountain Soursop toxic to dogs?

Mildly. The ASPCA lists mountain soursop 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. Like all Annona species, Annona montana contains annonaceous acetogenins in its seeds, leaves, and bark. These compounds are toxic in quantity, with neurotoxic potential documented across the genus. Seeds must never be eaten. The Annona genus is documented as toxic to dogs. Not individually listed by ASPCA — exercise caution and keep all plant parts away from pets.

Like all Annona species, Annona montana contains annonaceous acetogenins in its seeds, leaves, and bark. These compounds are toxic in quantity, with neurotoxic potential documented across the genus. Seeds must never be eaten. The Annona genus is documented as toxic to dogs. Not individually listed by ASPCA — exercise caution and keep all plant parts away from pets. 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 mountain soursop.

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: Mountain Soursop is mildly toxic to cats as well. See the full mountain soursop 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.