Is Moses-in-the-Cradle Toxic to Cats?
Also known as: Oyster Plant, Boat Lily, Tradescantia spathacea · Tradescantia spathacea
What makes it toxic
Calcium oxalate microcrystals and irritating enzymes in the sap. Chewing releases them into the mouth; broken leaves can also leave a rash on skin or paws.
Warning signs to watch for
Drooling, mouth rubbing, vomiting and reluctance to eat for a few hours. Skin contact can cause redness and itching on the chin or paws.
What to do if your cat eats it
Rinse the mouth, wipe any sap off the fur or paws and offer water. Call your vet if vomiting continues or a skin rash looks painful or spreads.
Common questions
Is Boat Lily a lily then?
No — it is a Tradescantia, unrelated to true lilies. The lily in the name does not carry the deadly kidney risk that true lilies do for cats.
Why is it called oyster plant too?
The white flowers nestle in boat-shaped purple bracts that resemble oyster shells. Same plant, same mild irritant sap under any name.
Can I touch it myself without risk?
Some people get a mild rash handling Tradescantia sap, so gloves are wise — and that same sap is what irritates a chewing cat.
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.