Is Chinese Arborvitae toxic to cats?

No — chinese arborvitae 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. Thuja orientalis is not listed as toxic to cats, dogs, or horses by the ASPCA. As with other Thuja species, the foliage contains low levels of thujone, but ASPCA does not classify this species as toxic. Large ingestion of foliage may cause mild GI upset. Considered pet-safe; seek veterinary advice if unusual symptoms occur after ingestion.

Yes — the ASPCA lists chinese arborvitae 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: Chinese Arborvitae is non-toxic to dogs as well. See the full chinese arborvitae 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.