Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Apple - what should I do?
Malus sylvestris
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
Dilated pupils, rapid breathing, hyperventilation, and potential shock.
Escalation note
Toxicity is primarily associated with the seeds and foliage. If your cat has ingested significant amounts of plant material, contact your veterinarian immediately.
First aid at home
Per ASPCA: contact your veterinarian or ASPCA Animal Poison Control (888-426-4435). Do not induce vomiting unless a veterinary professional directs you to. Remove any remaining plant material from your cat's reach so further chewing is impossible.
What to watch for
Watch for brick-red gums and mucous membranes, dilated pupils, rapid or labored breathing, panting, drooling, vomiting, and weakness. Severe cases progress to shock and collapse. Mild oral irritation alone after a small nibble is more likely than full cyanide signs in cats.
Time window
ASPCA does not publish cat-specific onset times. Cyanide is fast-acting in mammals once released, so signs that appear are likely to develop within minutes to a couple of hours of ingestion. Exact feline timing is not well documented.
When to call the vet
Call your vet or ASPCA Animal Poison Control (888-426-4435) immediately if you see red or bluish gums, panting, or any breathing change. Even without symptoms, call for guidance if your cat chewed leaves, stems, or whole seeds — especially from a wilting branch.
What this means for your cat
Cats are toxic-listed for apple by the ASPCA, but the danger isn't the fruit flesh — it's the seeds, leaves, and stems, which release cyanide when chewed. Cats rarely eat enough plant material to develop full cyanide poisoning, but exposure to wilted leaves or chewed seeds is a real risk worth a vet call.
Sources: ASPCA.
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.