PET SAFETY ANSWER · CITED TO ASPCA
Is Kalanchoe safe for cats?
Why it's toxic
Toxic principles: Bufodienolides
Clinical signs in cats: Vomiting, diarrhea, abnormal heart rhythm (rare).
Severity rating: moderate
Source
Classification per the ASPCA Toxic and Non-Toxic Plants database entry for Kalanchoe. Verified 2026-05-28. We update these answers when ASPCA changes the classification.