Is Joshua Tree Toxic to Cats?
Also known as: Yucca, Tree Yucca, Yucca Brevifolia · Yucca brevifolia
What makes it toxic
Steroidal saponins in leaves, bark and seeds. They inflame the GI tract, and houseplant-sized yucca relatives show the same effect at small scale.
Warning signs to watch for
Drooling, vomiting, diarrhea and lethargy within hours. Significant intake can produce weakness and dilated pupils.
What to do if your cat eats it
Remove access, offer water and call your vet if vomiting recurs. The spiny leaf tips also cause physical injuries — check the mouth for punctures.
Common questions
Is a Joshua tree houseplant a real risk?
Young specimens are grown as houseplants and carry the same yucca saponins. Size does not reduce toxicity per bite.
Is the spiky foliage a hazard beyond poison?
Yes — the rigid tips can scratch eyes and mouths. Keep indoor cats and yucca plants apart for both reasons.
Are yucca-containing pet foods a problem?
No — purified yucca extract in feed is a different, controlled form. Chewing the raw plant is the hazard.
More plants checked for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.