peppermint (Mentha × piperita), photographi

How to Grow Peppermint

Mentha × piperita · Zones 3-11

Peppermint is a perennial culinary herb, grown for the flavor it brings to the kitchen, ready to harvest about 90 days after planting. It's hardy across USDA zones 3 through 11, stands up to deer and grows just as well in a container as in the ground. Its summer flowers are a moderate draw for honeybees, native bees, and butterflies, even though the harvest is the prize.

Peppermint — the short answer

Peppermint: grown in zones 3–11, full sun, pH 4.5–8.3, about 90 days to maturity.

USDA zones
3–11
Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
Soil pH
4.5–8.3
FAO ECOCROP
Sun
Full Sun
Growable Ground Plant Database
Days to Maturity
90 days
USDA-NRCS; UMD-Herb
Frost-kill temperature
32°F
Growable Ground Plant Database

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.

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Peppermint (Mentha × piperita), photograph
Photo: Friederike Hoffmann · CC BY · via GBIF

What Peppermint is

Peppermint grows as a perennial and reaches around two feet at maturity. It blooms purple in summer. It's also deer-resistant and well suited to containers.

How to grow Peppermint

Peppermint grows in USDA zones 3 through 11 and is ready to harvest about 90 days after planting. Peppermint does best in full sun — at least 6 hours of direct sun a day — and soil from pH 4.5 to 8.3, on well-drained ground. It needs around 900 growing degree days to mature and a growing season of at least 40 frost-free days, which is why climate matters as much as soil.

USDA Zones

3-11

USDA PHZM 2023

Soil pH

4.5 - 8.3

FAO ECOCROP

Sun

Full Sun

Growable Ground plant catalog

Drainage

well (dry spells)

Growable Ground plant catalog

Frost Kill Temperature

32°F

Where cold starts killing growing tissue. Not a winter-survival floor — a dormant perennial takes far colder, which its hardiness zone answers.

Growable Ground Plant Database

Minimum Growing Temperature

39.2°F

Below this it stops growing rather than dies — a pace limit, not a survival limit.

Growable Ground Plant Database

Days to Maturity

90 days

Peppermint; sterile hybrid; propagated by division/cutting only.

USDA-NRCS; UMD-Herb

GDD Required

900+

Growing degree-days of accumulated warmth it needs to mature — humid summers reach this faster than cool coastal ones.

Growable Ground plant catalog

Mature Height

2 ft

Growable Ground plant catalog

Frost-Free Days

40+

The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.

Growable Ground plant catalog

  1. Start the season right

    Plant peppermint in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.

  2. Match the soil

    Peppermint prefers pH 4.5 to 8.3 (FAO ECOCROP). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.

  3. Water steadily

    Keep the root zone evenly moist through establishment. A 2–3 inch mulch layer holds moisture without waterlogging.

  4. Harvest at maturity

    Peppermint is ready about 90 days after planting (USDA-NRCS; UMD-Herb). Snip sprigs as you need them — regular cutting keeps the foliage tender and slows it bolting to flower.

Where Peppermint thrives

On hardiness alone, peppermint grows across most of the country — its range (USDA zones 3 through 11) is unusually wide. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.

A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 311 spans average winter lows from -40°F to 50°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 48 outright and splits 3 more down the middle — and which side of that line your land sits on changes the answer.

Zones 3–11 highlighted on the USDA national hardiness zone map

Zones 3–11·Where Peppermint growsOpen map →

Where Peppermint stands, state by state

Peppermint is rated for zones 311 — a cold floor USDA puts at -40 to -30°F. Across the 50 states and DC, 48 sit fully inside that band, the line runs through 3 more, and 0 sit outside it — and inside every split state, the same line runs on at county grain.

Fully inside zones 3–11

48 states

3 of 48 shown

The line runs through

3 states

Peppermint’s band covers part of each of these states — which side of the line your county sits on changes the answer, and each state page draws it.

State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.

What grows around Peppermint

Good to know

Good news for pet owners — peppermint isn't known to be toxic to dogs or cats. (Source: ASPCA.)

Peppermint offers moderate value to bees and other pollinators. (Source: Pollinator Partnership.)

Before you harvest peppermint, know your soil

Anything you grow to eat takes up what's in the ground it grows in, so it's worth knowing what's documented near you before you plant peppermint for food. Our free screen reads 9 federal source types across roughly 1.8M indexed sites and shows which sit near your address and which way they drain. It's a screening estimate from public records and proximity — not a soil test — so a nearby record means a soil test is worth it, not that your soil is unsafe.

Your land is one point inside Peppermint's range

This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.

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See if Peppermint will thrive on your land

Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether peppermint actually takes — we score it against the real conditions at your address.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

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How we know this about Peppermint

The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.

Grounded inUSDA PLANTS DatabaseUSDA PHZMASPCA

Frequently asked questions

Can I grow Peppermint in my zone?

Peppermint grows in USDA hardiness zones 3 through 11 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.

How long does Peppermint take to grow?

Peppermint is ready to harvest about 90 days after planting (USDA-NRCS; UMD-Herb). Your local frost dates and soil temperature move that window earlier or later.

When should you plant Peppermint?

Most growers plant peppermint after the last spring frost, once the soil has warmed, leaving enough of the season for its 40-day frost-free need. Your local frost dates set the exact window — a Growable Ground report reads them for your address.

How much sun does Peppermint need?

Peppermint needs full sun — a spot that catches at least 6 hours of direct summer sun a day. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.

What soil does Peppermint need?

Peppermint prefers soil pH 4.5 to 8.3, on well-drained ground (FAO ECOCROP). Your report scores your parcel's actual soil against that using USDA SSURGO data.

Does Peppermint attract pollinators?

Yes — peppermint's flowers are a solid nectar source for honeybees, native bees, and butterflies. (Source: Pollinator Partnership.)

Is Peppermint safe for pets?

Peppermint is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)