Is Vetter's Oregano toxic to cats?

No — vetter's oregano 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. Origanum species (oregano) are listed as non-toxic to dogs and cats by the ASPCA. Origanum vetteri is not individually listed, but as a member of the Origanum genus in Lamiaceae it carries no known toxic principles and follows the genus-level pet-safe classification. Large quantities of any aromatic herb may cause mild gastrointestinal upset, but culinary exposure is safe.

Yes — the ASPCA lists vetter's oregano 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: Vetter's Oregano is non-toxic to dogs as well. See the full vetter's oregano 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.