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Pet safety

Is Old Lady Cactus toxic to dogs?

Mammillaria hahniana

Non-toxic to dogs

No — old lady cactus is listed by the ASPCA as non-toxic to dogs. It is a sensible choice for a home with a dog; 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. Mammillaria hahniana is not individually listed by the ASPCA, but its genus is clean: the ASPCA lists Mammillaria fragilis (Thimble Cactus) as non-toxic to cats, dogs, and horses, with no Mammillaria species listed as toxic. It is therefore considered pet-safe, but the sharp spines are a genuine physical hazard to curious pets - verify with your vet if you have concerns.

Is old lady cactus toxic to dogs? — FAQ

Is old lady cactus toxic to dogs?

No — old lady cactus is listed by the ASPCA as non-toxic to dogs. It is a sensible choice for a home with a dog; a curious nibble will not poison them, though no plant is meant to be eaten. Mammillaria hahniana is not individually listed by the ASPCA, but its genus is clean: the ASPCA lists Mammillaria fragilis (Thimble Cactus) as non-toxic to cats, dogs, and horses, with no Mammillaria species listed as toxic. It is therefore considered pet-safe, but the sharp spines are a genuine physical hazard to curious pets - verify with your vet if you have concerns.

Is old lady cactus safe for dogs?

Yes — the ASPCA lists old lady cactus as non-toxic to dogs and dogs. A dog 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 old lady cactus toxic to cats too?

The ASPCA classification Growli uses applies to both cats and dogs: Old Lady Cactus is non-toxic to cats as well. See the full old lady cactus pet-safety guide for both species.

What other plants are safe for dogs?

Reliable ASPCA non-toxic picks for a dog home include spider plant, calathea, parlor palm, peperomia, and most true ferns. Browse the best dogs-safe plants list to check more before you buy.

Full old lady cactus pet-safety