Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Chinese Evergreen - what should I do?
Aglaonema modestum
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Signs to watch for
Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.
Escalation note
The insoluble calcium oxalate crystals cause immediate mechanical irritation. While rarely fatal, contact a veterinarian if your cat shows signs of distress or persistent vomiting.
First aid at home
Remove any plant fragments from your cat's mouth. Pet Poison Helpline notes that rinsing the mouth with milk or water can help wash out remaining crystals, and the calcium in milk can bind oxalates to ease the burning. Then call ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661). Do not induce vomiting unless instructed.
What to watch for
Sudden pawing at the mouth, foamy drooling, vocalizing, and head-shaking; vomiting; difficulty swallowing; visible swelling of the lips or tongue. Severe (rare): airway swelling that interferes with breathing.
Time window
Onset is fast, often within seconds to minutes of chewing. ASPCA notes the painful effects usually fade within 12–24 hours of ingestion.
When to call the vet
Call your vet or ASPCA Animal Poison Control (888-426-4435) if drooling persists past an hour, your cat refuses to eat or drink, the tongue or lips are visibly swelling, or there is any change in breathing — airway swelling needs in-person evaluation.
What this means for your cat
Cats that chew Chinese evergreen leaves get a fast, painful surprise — the leaves and stems are studded with insoluble calcium-oxalate crystals that act like microscopic needles in the mouth. ASPCA classifies it as toxic, but most cats stop chewing within seconds, and the painful effects typically fade within 12–24 hours with supportive care.
Sources: ASPCA, Pet Poison Helpline.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.