Pet safety answer · Cited to ASPCA
Is English Ivy safe for cats?
Why it's toxic
Toxic principles: Triterpenoid saponins (hederagenin)
Clinical signs in cats: Vomiting, abdominal pain, hypersalivation, diarrhea. Foliage is more toxic than berries
Severity rating: moderate
Source
Classification per the ASPCA Toxic and Non-Toxic Plants database entry for English Ivy. Verified 2026-05-28. We update these answers when the source changes the classification.