Is Flame nasturtium toxic to cats?

No — flame nasturtium 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. Tropaeolum (nasturtium) is listed by the ASPCA as non-toxic to dogs, cats, and horses. Tropaeolum speciosum belongs to the same genus and contains no known toxic principles for pets. The RHS flags it as a skin allergen — wear gloves when handling to avoid contact dermatitis. The berries are not a culinary crop and may cause mild stomach upset if eaten in quantity.

Yes — the ASPCA lists flame nasturtium 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: Flame nasturtium is non-toxic to dogs as well. See the full flame nasturtium 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.