Is Star of Bethlehem Toxic to Cats?
Also known as: Grass Lily, Nap-at-Noon, Dove’s Dung · Ornithogalum umbellatum
What makes it toxic
Cardiac glycosides throughout the plant, including the bulb. They interfere with the heart’s sodium-potassium pump, the same mechanism as digoxin poisoning, slowing and destabilizing the heartbeat.
Warning signs to watch for
Drooling, vomiting and diarrhea within hours, followed by weakness, a slow or irregular pulse, dilated pupils, tremors, seizures and collapse as the heart is affected.
What to do if your cat eats it
This is an emergency. Go to a vet or emergency animal hospital immediately after any confirmed ingestion, even if the cat looks well — heart monitoring and decontamination must start before cardiac signs appear.
Common questions
Is star of Bethlehem as dangerous as lily-of-the-valley?
It acts on the heart in the same way through similar glycosides. For a cat, any meaningful bite is an emergency visit.
Is only the bulb toxic?
No. Leaves, stems and flowers all contain cardiac glycosides; the bulb is simply the most concentrated part.
It looks like wild garlic — could I have pulled it by mistake?
Yes, the grassy leaves are commonly confused. Never bring look-alike foraged greens home where pets can reach them.
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.