Is Geranium macrorrhizum toxic to cats?

No — geranium macrorrhizum 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. Non-toxic to cats and dogs. As a true Geranium (cranesbill), it is not listed on the ASPCA toxic plant list, which flags only Pelargonium (Geranium/Scented Geranium) as toxic. ASPCA guidance separates the safe Geranium genus from toxic Pelargonium. Eating a large quantity could still cause mild, transient stomach upset.

Yes — the ASPCA lists geranium macrorrhizum 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: Geranium macrorrhizum is non-toxic to dogs as well. See the full geranium macrorrhizum 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.