Is Fagus sylvatica 'Pendula' toxic to dogs?

Mildly. The ASPCA lists fagus sylvatica 'pendula' 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. Not individually listed by the ASPCA, so its status is uncertain; treat with caution and verify with a vet. As a Fagus sylvatica cultivar, the beech nuts contain tannins and saponins and can cause gastrointestinal upset in dogs if eaten in quantity, with green nuts most hazardous. Do not assume pet-safe.

Not individually listed by the ASPCA, so its status is uncertain; treat with caution and verify with a vet. As a Fagus sylvatica cultivar, the beech nuts contain tannins and saponins and can cause gastrointestinal upset in dogs if eaten in quantity, with green nuts most hazardous. Do not assume pet-safe. 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 fagus sylvatica 'pendula'.

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: Fagus sylvatica 'Pendula' is mildly toxic to cats as well. See the full fagus sylvatica 'pendula' 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.