Kalanchoe

Yes, Kalanchoe is toxic to cats. All parts of the plant contain cardiac glycosides, and ingestion can cause vomiting, diarrhea, drooling, and in larger doses, abnormal heart rhythm. It is classified as potentially toxic with a high-confidence rating from ASPCA sources.

The most common first sign is vomiting, often appearing shortly after a cat chews the leaves or flowers. Diarrhea and drooling typically follow. Larger ingestions can progress to weakness, collapse, and abnormal heart rate or rhythm, though cardiac signs are uncommon at small doses.

Call ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian as soon as possible. Do not induce vomiting unless a veterinarian explicitly instructs you to — cardiac glycoside toxicity requires professional guidance on next steps.

All parts of the Kalanchoe plant contain cardiac glycosides, so leaves, flowers, and stems are all considered potentially harmful. There is no safe portion to expose your cat to, and even small amounts can trigger gastrointestinal upset.

Yes, kalanchoe is toxic to dogs. All parts of the plant contain cardiac glycosides that can harm the heart muscle and cause gastrointestinal upset.

The most common signs are vomiting and diarrhea. Dogs may also show lethargy or weakness. With larger ingestions, cardiac arrhythmias — including an unusually fast or irregular heartbeat — are possible, though uncommon.

Call ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian immediately. Do not induce vomiting unless a vet specifically instructs you to, as the cardiac glycosides in kalanchoe make prompt professional guidance important.

Onset timing is not well documented, but GI signs like vomiting and diarrhea are by far the most frequent result — nearly every affected dog shows these first. Cardiac changes such as arrhythmia are uncommon and most likely with large ingestions; call your vet immediately if your dog seems weak, collapses, or shows unusual heart-related symptoms like panting at rest.