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Pet safety

Is White Horehound toxic to cats?

Marrubium vulgare

Non-toxic to cats

No — white horehound 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. This classification follows the ASPCA Toxic and Non-Toxic Plant List. Marrubium vulgare is not listed as toxic to cats, dogs, or horses by ASPCA and is generally considered non-toxic to pets. However, the plant's bitter marrubiin content may cause mild gastrointestinal upset (vomiting, diarrhea) if consumed in large quantities. It is safe to grow in pet-accessible gardens.

Is white horehound toxic to cats? — FAQ

Is white horehound toxic to cats?

No — white horehound 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. Marrubium vulgare is not listed as toxic to cats, dogs, or horses by ASPCA and is generally considered non-toxic to pets. However, the plant's bitter marrubiin content may cause mild gastrointestinal upset (vomiting, diarrhea) if consumed in large quantities. It is safe to grow in pet-accessible gardens.

Is white horehound safe for cats?

Yes — the ASPCA lists white horehound 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.

Is white horehound toxic to dogs too?

The ASPCA classification Growli uses applies to both cats and dogs: White Horehound is non-toxic to dogs as well. See the full white horehound pet-safety guide for both species.

What other plants are safe for cats?

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.

Full white horehound pet-safety