Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
cat safety reference
Is Buckeye safe for cats?
Aesculus spp
Buckeye trees and shrubs contain toxic glycosides and saponins that affect the gastrointestinal and nervous systems. All parts of the plant, especially the seeds and leaves, are considered poisonous if ingested.
Aesculus hippocastanumAesculus sppHorse ChestnutOhio Buckeye
- Light
- Full sun to partial shade
- Habit
- Tree or large shrub
- Care
- Low
Safety status
What this means for your cat
Cats should not chew or swallow any part of a buckeye. The plant's saponins (notably aesculin) can produce severe vomiting and diarrhea, and Pet Poison Helpline notes cats are especially prone to oral burning, marked thirst, and - with larger ingestions - kidney injury.
What to watch for
Earliest signs are drooling and pawing at the mouth, then vomiting and diarrhea. Pet Poison Helpline calls out cat-specific signs: oral and throat burning, a noticeable increase in thirst, and - with larger doses - kidney failure. ASPCA adds that severe ingestions can produce dilated pupils, depression or excitement, weakness, muscle twitching, and seizures.
Time window
Onset and recovery times are not specifically documented in ASPCA or Pet Poison Helpline references; treat any buckeye exposure as time-critical and seek same-day veterinary care.
When to call the vet
Call your vet or Pet Poison Helpline (855-764-7661) immediately on any suspected buckeye ingestion in a cat - do not wait for symptoms to start. Go straight to an emergency clinic if your cat is staggering, tremoring, having seizures, or showing reduced or off-color urine.
First aid at home
Per Pet Poison Helpline's buckeye article: stay calm, remove any remaining plant material from your cat's mouth and surrounding area, and call a vet, emergency clinic, or Pet Poison Helpline (855-764-7661) before giving food, water, or anything else by mouth.
Sources: ASPCA, Pet Poison Helpline.
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
Vomiting, diarrhea, drooling, abdominal pain, and in severe cases, muscle tremors or incoordination.
Escalation note
Ingestion can lead to significant gastrointestinal distress and neurological signs. Please contact your veterinarian or an animal poison control center immediately if ingestion is suspected.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
Source evidence
Questions about Buckeye
Is buckeye toxic to cats?
Yes, buckeye (Aesculus spp.) is toxic to cats. All parts of the plant — especially the seeds and leaves — contain toxic glycosides and saponins that affect both the gastrointestinal and nervous systems.
What symptoms will my cat show after eating buckeye?
Early signs include drooling, pawing at the mouth, vomiting, and diarrhea. With larger ingestions, cats can develop oral and throat burning, increased thirst, dilated pupils, weakness, muscle twitching, incoordination, and in severe cases, seizures or kidney failure.
What should I do if my cat ate part of a buckeye tree?
Stay calm, remove any remaining plant material from your cat's mouth and the surrounding area, then call your vet, an emergency clinic, or the ASPCA Animal Poison Control Center at (888) 426-4435 — do not wait for symptoms to appear before seeking help, and do not give food, water, or anything else by mouth until you've spoken with a professional.
How quickly do buckeye symptoms appear in cats, and is recovery likely?
Exact onset and recovery times are not specifically documented in ASPCA or Pet Poison Helpline references, so any buckeye exposure should be treated as time-critical; seek same-day veterinary care. Go straight to an emergency clinic if your cat is staggering, tremoring, having seizures, or producing reduced or off-color urine.
Same cat verdict
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