🥬 Mâche

Valerianella locusta
The fancy French green that laughs at frost — corn salad's glow-up.
Sun
Full sun to part shade; appreciates afternoon shade in warm spells
Days to harvest
50–70 days from seed (sow in fall for winter harvest)
Spacing
4–6 inches apart; sow thickly and thin to clumps
Soil pH
6.0–7.0

How to grow

Mâche (pronounced 'mosh,' also called corn salad or lamb's lettuce) is the cool-season green for people who think spinach is a drama queen. It germinates in soil as cold as 40°F, survives hard frosts that kill lettuce outright, and happily grows under a cold frame or row cover all winter in zones 6+. Sow in late summer through fall — it needs cool soil to germinate and sulks if sown in warmth.

The seeds are tiny and slow to wake up (7–14 days), so mark your rows and don't assume failure. Sow a quarter inch deep, keep consistently moist, and thin to rosettes 4–6 inches apart. The plants form low, velvety rosettes of spoon-shaped leaves with a mild, nutty flavor — no bitterness, no bolt panic, just quiet competence.

In mild-winter regions (looking at you, Gulf South), mâche sown in October harvests from December through March. It's one of the few greens that genuinely prefers winter, which makes it the introvert hero of the cold frame.

Water & feeding

Keep evenly moist, especially during germination — a board or burlap over the row holds moisture until sprouts appear. About an inch a week once growing. A light worm casting top-dress at sowing feeds the slow start without pushing soft growth.

Common problems

  • Slow/spotty germination: soil too warm — wait for soil below 68°F; pre-chill seed helps.
  • Slugs: the low rosettes are slug-adjacent real estate — iron phosphate bait, beer traps, or copper barriers.
  • Bolting in spring warmth: harvest heavily before day length and heat trigger flowering; it's a winter crop, let it go.
  • Weeds: slow early growth means weeds win — mulch between plants or sow in weed-free beds.

Harvest

Cut whole rosettes at the base or pick outer leaves for cut-and-come-again. Harvest in the morning for crispness. The tiny blue-white flowers are edible too, if you let a plant bolt for the pollinators.

Nerdy fact: Mâche was foraged as a wild winter green in Europe for centuries before anyone bothered cultivating it — French farmers noticed it volunteering in their cornfields (hence 'corn salad') and eventually decided to just plant it on purpose. It's a weed that got promoted.

Browse all 229 plant & pest guides