mache (Valerianella locusta), photographi

How to Grow Mache

Valerianella locusta

Mache is an annual grown for its leaves, ready to start cutting about 50 days after sowing. Notably, it grows just as well in a container as in the ground. Its spring flowers are a modest draw for honeybees, even though the leaves are the prize. Once it comes in, a single planting keeps producing for about three weeks, so you harvest over time rather than all at once.

Mache — the short answer

Mache: full sun, pH 6–7.5, about 50 days to maturity.

Soil pH
6–7.5
Growable Ground Plant Database
Sun
Full Sun
Growable Ground Plant Database
Days to Maturity
50 days
OSU-PNW; Johnny's
Frost-kill temperature
-5°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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Mache (Valerianella locusta), photograph
Photo: Jochen Knabben · CC BY-SA · via GBIF

What Mache is

Mache grows as an annual and reaches around 6 inches at maturity. It blooms white in spring. It's also well suited to containers.

How to grow Mache

Mache is ready to harvest about 50 days after planting. Mache does best in full sun — at least 6 hours of direct sun a day — and soil from pH 6 to 7.5, on well-drained ground. It needs around 600 growing degree days to mature and a growing season of at least 45 frost-free days, which is why climate matters as much as soil.

USDA Zones

Data pending

Soil pH

6 - 7.5

Growable Ground Plant Database

Sun

Full Sun

Growable Ground plant catalog

Drainage

well (dry spells)

Growable Ground plant catalog

Frost Kill Temperature

-5°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

Days to Maturity

50 days

Mâche / corn salad; cold-tolerant; overwinter in zones 6+.

OSU-PNW; Johnny's

GDD Required

600+

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

0.5 ft

Growable Ground plant catalog

Frost-Free Days

45+

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 mache in full sun with at least 6 hours of direct sun. It grows in the cool halves of the year, so sow it in spring or late summer rather than waiting for midsummer heat.

  2. Match the soil

    Mache prefers pH 6 to 7.5 (Growable Ground Plant Database). 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

    Mache is ready about 50 days after sowing (OSU-PNW; Johnny's). Cut the outer leaves as you need them — frequent harvest keeps new growth coming.

Where Mache thrives

Whether mache thrives on a given site comes down to its soil pH, drainage, sun, and frost dates — the conditions that vary parcel to parcel.

Good to know

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

Mache offers low value to bees and other pollinators.

Before you harvest mache, 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 mache 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 Mache'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 Mache will thrive on your land

Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether mache 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 Mache

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 Mache in my zone?

Zone data for mache is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.

How long does Mache take to grow?

Mache is ready to harvest about 50 days after planting (OSU-PNW; Johnny's). Your local frost dates and soil temperature move that window earlier or later.

When should you plant Mache?

Mache is a cool-season crop, so it goes in during the cool halves of the year — early spring, and again in late summer for a fall planting — rather than at the height of summer heat. Your local frost dates set the exact window — a Growable Ground report reads them for your address.

How much sun does Mache need?

Mache 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 Mache need?

Mache prefers soil pH 6 to 7.5, on well-drained ground (Growable Ground Plant Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.

Does Mache attract pollinators?

Yes — mache's flowers are a modest nectar source for honeybees.

Is Mache safe for pets?

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