Is Horse Chestnut toxic to dogs?

Yes. According to Plants4Pets, Horse Chestnut is toxic to dogs. Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins This entry has not been manually verified yet — treat it as guidance only.

Is Horse Chestnut toxic to horses?

Yes. According to Plants4Pets, Horse Chestnut is toxic to horses. Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins This entry has not been manually verified yet — treat it as guidance only.

Which pets are most at risk from Horse Chestnut?

Our database flags Horse Chestnut as toxic to: cats, dogs, horses.

What should I do if my pet eats Horse Chestnut?

Remove remaining plant material, do not induce vomiting unless a vet instructs you to, and seek professional help immediately with the plant name ready.

Is Horse Chestnut toxic to cats, dogs? (Aesculus glabra)

Horse Chestnut (Aesculus glabra) is marked as potentially toxic to cats, dogs, horses in the Plants4Pets database. Keep this plant out of reach of curious pets and read the species-specific notes below.

Photos of Horse Chestnut (Aesculus glabra)

Horse Chestnut (Aesculus glabra) — plant photo, pet toxicity guide

Is Horse Chestnut toxic to cats, dogs or horses?

Cat Toxic Not verified

Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins
Dog Toxic Not verified

Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins
Horse Toxic Not verified

Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins

Community confirmations show that other users find this rating helpful. They are not verified by our team.

Horse Chestnut plant details and common names

Family: Sapindaceae

Also known as: Buckeye, Ohio Buckeye, Fetid Buckeye

Safety advice if a pet eats Horse Chestnut

Many popular houseplants and garden species can cause vomiting, drooling, skin irritation or more serious symptoms when chewed by cats, dogs or horses. The information on this page is for educational purposes and does not replace a veterinary consultation.

If your pet has eaten any part of Horse Chestnut (Aesculus glabra), note the amount ingested, watch for unusual behaviour and contact a veterinarian or pet poison helpline immediately.

Found outdated or incorrect data? Use the report form below or e-mail kontakt@plants4pets.pl with the plant name, species affected and your source — we review every submission.

FAQ: Horse Chestnut and pet toxicity

Is Horse Chestnut toxic to cats?: Yes. According to Plants4Pets, Horse Chestnut is toxic to cats. Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins This entry has not been manually verified yet — treat it as guidance only.
Is Horse Chestnut toxic to dogs?: Yes. According to Plants4Pets, Horse Chestnut is toxic to dogs. Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins This entry has not been manually verified yet — treat it as guidance only.
Is Horse Chestnut toxic to horses?: Yes. According to Plants4Pets, Horse Chestnut is toxic to horses. Severe vomiting and diarrhea, depression or excitement, dilated pupils, weakness, unsteadiness, depression, seizures, coma Toxic principles: Aesculin (a glycosidic saponin), other saponins This entry has not been manually verified yet — treat it as guidance only.
Which pets are most at risk from Horse Chestnut?: Our database flags Horse Chestnut as toxic to: cats, dogs, horses.
What should I do if my pet eats Horse Chestnut?: Remove remaining plant material, do not induce vomiting unless a vet instructs you to, and seek professional help immediately with the plant name ready.

Report an error or missing data

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Wrong toxicity for a cat, dog or horse
Missing or incorrect plant name
Better photo or source link
Additional veterinary or botanical reference

Include the plant name (Aesculus glabra), affected pet species and, if possible, a link to your source. We usually respond within a few business days.