Is Gleditsia triacanthos f. inermis toxic to cats?

No — gleditsia triacanthos f. inermis 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-listed as non-toxic to cats and dogs (and horses); honey locust (Gleditsia triacanthos) appears on the ASPCA non-toxic plant lists. This thornless form removes the thorn-injury risk of the wild species; large quantities of seed pods may still cause mild, self-limiting stomach upset.

Yes — the ASPCA lists gleditsia triacanthos f. inermis 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: Gleditsia triacanthos f. inermis is non-toxic to dogs as well. See the full gleditsia triacanthos f. inermis 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.