Is Mother of Thousands Toxic to Dogs?
Also known as: Mexican Hat Plant, Alligator Plant, Devil’s Backbone (shared name), Kalanchoe daigremontiana · Kalanchoe daigremontiana
What makes it toxic
Bufadienolide cardiac glycosides throughout the plant, concentrated in the leaf-edge plantlets. They poison the heart’s sodium-potassium pumps the way digitalis does, causing arrhythmia and heart failure.
Warning signs to watch for
Vomiting and drooling within hours, followed by diarrhea, abdominal pain, lethargy, abnormal slow or racing heartbeat, wobbliness, tremors, seizures and collapse.
What to do if your dog eats it
This is a drop-everything emergency. Get the dog to a vet or animal ER at once and say the dog ate a Kalanchoe. Decontamination and cardiac monitoring started early can save the dog.
Common questions
How dangerous is this plant compared to sago palm?
Comparable in severity. Sago destroys the liver; mother of thousands poisons the heart. Both have killed dogs after small ingestions, and both deserve zero tolerance in a pet household.
The dog only ate one fallen plantlet — is that serious?
Treat it as serious. The plantlets carry a high glycoside load, and dose that seems small can affect a small dog’s heart. An immediate vet visit for decontamination is the safe call.
Are all Kalanchoes this dangerous?
Every Kalanchoe species contains bufadienolides, so florist kalanchoe, mother of millions and chandelier plant are all toxic to dogs, not just mother of thousands.
More plants checked for dogs
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.