Dogs
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.
Sources
dog safety reference
Is Buckeye safe for dogs?
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 dog
Dogs that bite into buckeye nuts, leaves, or twigs can develop fast-moving GI upset and, with larger doses, neurologic signs caused by the plant's saponins (notably aesculin). Treat any swallowed material as a vet call - dogs sometimes look fine for the first hour or two even after a meaningful ingestion.
What to watch for
Drooling, vomiting, and diarrhea are the most common early signs in dogs (Pet Poison Helpline). Larger ingestions can progress to 'walking drunk' incoordination, depression or excitement/agitation, dilated pupils, muscle twitching, and seizures (ASPCA + Pet Poison Helpline).
Time window
Pet Poison Helpline and ASPCA do not publish specific onset or recovery windows for canine buckeye toxicosis; assume rapid GI signs are possible within hours and that any neurologic signs warrant immediate emergency care.
When to call the vet
Call your vet or Pet Poison Helpline (855-764-7661) right away if your dog chewed buckeye nuts or foliage - even a small ingestion warrants the call. Go straight to an emergency clinic if you see staggering, weakness, tremors, agitation, or seizures.
First aid at home
Per Pet Poison Helpline's buckeye article: stay calm, clear any remaining plant material from your dog's mouth and the 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.
Dogs — concern 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
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
Aesculus species are known to be poisonous to humans and animals if ingested.
Same dog verdict
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