Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate English Ivy - what should I do?
Hedera helix
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Signs to watch for
Vomiting, abdominal pain, hypersalivation and diarrhea are commonly reported after ingestion.
Escalation note
Foliage is generally more irritating than the berries in reported cases, but both are listed as toxic.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.