Is European Hazel 'Nottingham Prolific' toxic to cats?

No — european hazel 'nottingham prolific' is listed by the ASPCA as non-toxic to cats. It is a sensible choice for a home with a cat; a curious nibble will not poison them, though no plant is meant to be eaten. ASPCA does not list European hazel (Corylus avellana) foliage as toxic to cats or dogs, and the species is absent from its toxic plant lists, so the plant is treated as non-toxic. The hazard is the nuts themselves: whole hazelnuts can choke or obstruct, are high in fat (pancreatitis risk in dogs), and moldy fallen nuts may carry tremorgenic mycotoxins, so remove dropped nuts.

Yes — the ASPCA lists european hazel 'nottingham prolific' as non-toxic to cats and dogs. A cat that chews a large amount of any foliage can still get a mild, brief stomach upset, so discourage grazing, but it will not be poisoned.

The ASPCA classification Growli uses applies to both cats and dogs: European Hazel 'Nottingham Prolific' is non-toxic to dogs as well. See the full european hazel 'nottingham prolific' pet-safety guide for both species.

Reliable ASPCA non-toxic picks for a cat home include spider plant, calathea, parlor palm, peperomia, and most true ferns. Browse the best cats-safe plants list to check more before you buy.