Is Quercus robur 'Fastigiata' toxic to dogs?

Yes — quercus robur 'fastigiata' is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. Toxic to dogs and cats. The ASPCA lists oak (Quercus) as toxic; the toxic principles are tannins (gallotannic and related phenolic acids), concentrated in buds, young leaves and especially acorns. Signs include vomiting, abdominal pain, diarrhoea (sometimes bloody) and, with large or repeated intake, possible liver and kidney effects.

Toxic to dogs and cats. The ASPCA lists oak (Quercus) as toxic; the toxic principles are tannins (gallotannic and related phenolic acids), concentrated in buds, young leaves and especially acorns. Signs include vomiting, abdominal pain, diarrhoea (sometimes bloody) and, with large or repeated intake, possible liver and kidney effects. 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 quercus robur 'fastigiata'.

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: Quercus robur 'Fastigiata' is toxic to cats as well. See the full quercus robur 'fastigiata' 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.