Buckeye — Fernando Losada Rodríguez
Photo by Fernando Losada RodríguezWikimedia CommonsCC BY-SA 4.0
Pet safety reference

Buckeye

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

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

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.

Catsconcern 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.

Dogsconcern notes

Common signs

Vomiting, diarrhea, excessive salivation, lethargy, and potential neurological impairment such as tremors or weakness.

Escalation note

The toxins in buckeye can cause rapid onset of illness. Seek immediate veterinary attention if your dog has consumed any part of this plant.

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

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Buckeye is listed as toxic to both cats and dogs due to the presence of aesculin and other saponins.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Aesculus species are known to be poisonous to humans and animals if ingested.

cats safety pageMy cat ate Buckeyedogs safety pageMy dog ate Buckeye

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