Considered toxic

Yucca (Yucca) is listed as toxic to cats and/or dogs on the ASPCA toxic and non-toxic plant list (entry verified 2026-07-20). Keep it out of reach, and if your pet has chewed it, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.

What the ASPCA lists for Yucca

The ASPCA records Yucca (Yucca, family Agavaceae) as Toxic to Dogs, Toxic to Cats, Toxic to Horses. Toxic principle: Saponins. Clinical signs listed: Dogs, cats: Vomiting; Horses: liver disease, dermatitis. Read the ASPCA entry.

This is one of the few entries where the listed signs differ by species: dogs and cats get vomiting, while horses are recorded with liver disease and dermatitis. If you keep yucca anywhere a horse can reach it, that is a materially different risk from the houseplant case.

What this verdict does and does not mean

Being non-toxic does not mean a plant is chew-proof: even pet-safe houseplants can upset a cat's or dog's stomach if they eat a large amount, simply because it is plant matter. Most toxic houseplants cause irritant-level symptoms, such as drooling, mouth soreness, or a mild upset stomach, rather than a medical emergency. A small number of plants are a genuine emergency, most notably true lilies (Lilium and Hemerocallis species) for cats, which can cause fatal kidney failure from even a small amount of pollen or a nibbled leaf. If you are ever in doubt, or your pet has eaten part of a plant, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.

Safer alternatives

Looking for something with a similar look and habit that is pet-safe instead?

More on pet safety

Read the full care guide for Yucca, browse the pet safety checker for other plants, or identify a plant from a photo first if you are not sure what you have. Verdicts here follow the ASPCA toxic and non-toxic plant list.