Mint — (c) Jon Sullivan, some rights reserved (CC BY)
Photo by (c) Jon Sullivan, some rights reserved (CC BY)iNaturalistCC BY
dog safety reference

Is Mint safe for dogs?

Mentha sp.

Mint is a popular aromatic herb known for its rapid growth and fragrant foliage. While commonly used in human culinary applications, it contains essential oils that can cause gastrointestinal distress in pets.

MenthaMentha sp.MintPeppermintSpearmint
Light
Bright indirect light to partial shade
Habit
Spreading, rhizomatous
Care
Low to moderate

Safety status

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.

What this means for your dog

Garden mint is on the ASPCA's toxic-to-dogs list, with essential oils as the toxic principle. The good news for dog owners: a leaf or two grabbed from a herb pot is unlikely to cause more than mild stomach upset. The risk scales with the amount eaten — a dog that demolishes a whole mint plant or licks up spilled mint essential oil is much more likely to need a vet.

What to watch for

Most common with leaf ingestion: vomiting and diarrhea, especially after large amounts. With essential-oil exposure: drooling, weakness, ataxia, and possible CNS depression. Severity is usually mild for casual nibbling and moderate-to-severe for big ingestions or oil exposure.

Time window

GI signs from fresh mint usually appear within a few hours and resolve over 24–48 hours with supportive care. Specific timing isn't given by ASPCA; large or essential-oil ingestions can cause faster onset.

When to call the vet

Call your vet or ASPCA APCC (888-426-4435) if your dog ate a large quantity of mint, is vomiting repeatedly, has bloody diarrhea, or got into peppermint or any mint essential oil. A single leaf snatched from a planter, with no symptoms, can usually be watched at home.

Sources: ASPCA (no first-aid guidance).

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.

Dogsconcern notes

Common signs

Vomiting, diarrhea, and potential abdominal discomfort.

Escalation note

While generally mild, ingestion can lead to digestive irritation. Consult a veterinarian if you are concerned about the amount consumed.

Safer alternatives

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Mentha species are listed as toxic to cats and dogs by the ASPCA.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Mentha is a genus of plants in the Lamiaceae family, widely cultivated for culinary and medicinal use.

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