Is Odontoglossum crispum toxic to cats?

No — odontoglossum crispum 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. A true orchid with no known toxic principle. The ASPCA lists orchids (with Phalaenopsis as the reference entry) as non-toxic to cats and dogs and states no orchid is known to be poisonous to cats; Odontoglossum-type orchids feature on pet-safe orchid lists. Odontoglossum crispum is not individually named, but shares the family's safe chemistry. Chewing may cause only mild GI upset; the genuine risk is any pesticide or fertiliser on the foliage.

Yes — the ASPCA lists odontoglossum crispum 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: Odontoglossum crispum is non-toxic to dogs as well. See the full odontoglossum crispum 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.