Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Heartleaf Philodendron - what should I do?
Philodendron hederaceum
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Signs to watch for
Oral irritation, mouth pain, drooling, vomiting and difficulty swallowing after chewing.
Escalation note
Usually an irritating exposure. Seek veterinary guidance for significant mouth symptoms.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.