How to grow mâches
Valerianella locusta · other family · annual crop
Mâche is a cool-season crop, usually direct-sown in the garden, and planting opens once soil reaches about 50°F; varieties in the library mature in 50 to 60 days.

Mache, also called corn salad, is a low, spoon-leaved rosette grown almost entirely for its cold hardiness. It survives winters that shut down every other salad green, coming through hard freezes under nothing more than mulch or row cover, and fills the gap between the last fall lettuce and the first spring one. The leaves are small, soft, and mildly nutty, harvested by cutting whole rosettes at the base or picking individual leaves and leaving the crown to keep producing. Because it stays low and slow-growing all winter, it tucks neatly into bed edges and cold frames where lettuce or spinach would sprawl or bolt.
The hardest part of growing mache well is sowing it at the wrong end of the season. Utah State University Extension and the UC Master Gardener Program both note the seed goes dormant in warm soil and bolts once heat arrives, so it must go in as summer ends, not in spring with the salad bed. A second-year gardener working from one spring calendar often sows it with the lettuce, then blames the seed when little comes up. The real problem is timing: the same seed sown in late summer, as the ground cools, germinates readily and carries the garden through winter, the season mache suits.
Growing basics
Mâche is a cool-season crop, usually direct-sown in the garden.
Seeds germinate once soil reaches about 50°F.
Varieties in the library run 50 to 60 days to maturity.
Grows best in full sun.
Frost-hardy: keeps going through freezes.
Space plants 3 to 4 inches apart.
Common questions
When do you plant mâches?
Mâche is a cool-season crop, usually direct-sown in the garden. Planting opens once soil reaches about 50°F.
What soil temperature does mâches need?
Seeds germinate once soil reaches about 50°F.
How far apart do you space mâches?
Space plants 3 to 4 inches apart.
How long does mâches take to mature?
Varieties in the library run 50 to 60 days from planting to harvest.
3 mâches in the library
Vit · Verte de Cambrai · Coquille de Louviers
Each has a full cited page in the library.
Pests and diseases we cover
Aphid
Slug
Identification and treatment for each, with photos, in the library.
Row & Bed covers 3 mâche varieties, each with a cited care timeline and fertilization schedule, identification and treatment for the 2 pests that reach them, and planting windows worked out for your ZIP.
Set up your gardenSee something that does not match your garden? Write to andy@rowandbed.com.