PET SAFETY ANSWER · CITED TO ASPCA
Is Schefflera (Umbrella Plant) safe for cats?
Why it's toxic
Toxic principles: Calcium oxalate crystals
Clinical signs in cats: Oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing.
Severity rating: moderate
Source
Classification per the ASPCA Toxic and Non-Toxic Plants database entry for Schefflera (Umbrella Plant). Verified 2026-05-28. We update these answers when ASPCA changes the classification.