Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Maleberry - what should I do?
Lyonia sp.
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
Drooling, vomiting, diarrhea, weakness, and potential cardiac arrhythmias.
Escalation note
Ingestion of grayanotoxins can lead to serious systemic effects; contact your veterinarian immediately if you suspect your cat has consumed any part of this plant.
First aid at home
Remove any remaining plant material from your cat's mouth and save a sample of the leaves to show the vet. Head straight to the clinic. Do not induce vomiting at home.
What to watch for
Drooling and vomiting are the earliest signs, often within an hour. Diarrhea, weakness, and a wobbly gait usually follow. The dangerous signs are slow or irregular heartbeat, collapse, hypotension, and difficulty breathing — those mean grayanotoxin is affecting the heart.
Time window
Clinical signs typically develop within 1 to 4 hours, occasionally up to 12 hours after ingestion. Heart rate and blood pressure usually return to normal within 2 to 9 hours of treatment, with full recovery in about 24 hours for small ingestions; large doses can be life-threatening within 1 to 2 days.
When to call the vet
Call ASPCA Animal Poison Control (1-888-426-4435) or your vet immediately on any suspected ingestion — even a few leaves can cause cardiac effects. Go in right away for weakness, collapse, abnormal breathing, or a slow or fluttering heartbeat.
What this means for your cat
Maleberry sits in the same plant family as azaleas and rhododendrons, and it carries the same toxin: grayanotoxin. For cats, even a few leaves can be a real problem — the toxin disrupts heart rhythm and blood pressure, not just the stomach. Treat any ingestion as a vet emergency.
Sources: ASPCA, MSD Veterinary Manual.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.