How to Grow Mâche (Corn Salad)
Valerianella locusta
Mâche, also known as corn salad, is a tender leafy green prized for its peppery flavor and delicate texture. Gardeners cultivate this cool-season crop to add fresh greens to salads or sandwiches during the cooler months of spring and autumn.
Starting Mâche (Corn Salad): indoors or direct sow?
🌾 Sow directly in the garden — Mâche (Corn Salad) is not usually started indoors.
Direct sow seeds outdoors before the last frost rather than starting indoors or transplanting seedlings.
Soil, care & harvest
Prepare loose, fertile soil with a pH between 6.0 and 7.5. Since Mâche is a cold-hardy green, you should sow seeds directly outdoors two to six weeks before your last expected frost date. Press seeds lightly into the soil at a depth of about one-quarter inch. Germination typically occurs within ten to fourteen days once the soil cools down.
Space plants two to four inches apart to ensure good air circulation and healthy growth. Keep the soil consistently moist, aiming for about an inch of water per week, but avoid letting it dry out completely. Apply a light layer of mulch around the base to retain moisture and suppress weeds. No trellising or support is needed for this low-growing variety.
Watch for slugs as the primary pest; hand-pick them at dusk or use organic barriers. Downy mildew may appear in very wet conditions, so ensure good airflow. Harvest leaves when they are young and tender, usually fifty days after sowing. Cut outer leaves first to encourage continued production throughout the season.
When to Plant Mâche (Corn Salad)
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | — | June – July | July – September |
| Zone 2 | — | May – July | July – September |
| Zone 3 | — | May – June | June – October |
| Zone 4 | — | April – June | June – October |
| Zone 5 | — | April – May | June – November |
| Zone 6 | — | April – May | May – November |
| Zone 7 | — | March – May | May – November |
| Zone 8 | — | March – April | April – December |
| Zone 9 | — | February – March | March – December |
| Zone 10 | — | January – March | March – December |
| Zone 11 | — | January – February | February – December |
| Zone 12 | — | January – February | February – December |
| Zone 13 | — | January – February | February – December |
Companion Plants for Mâche (Corn Salad)
✓ Good companions
Deep roots complement shallow mâche roots, efficient space usage
Repels aphids and other pests while improving soil health
Attracts beneficial predatory insects that control harmful pests
Natural pest deterrent that repels aphids and slugs
Attracts beneficial insects and provides natural ground cover
Fix nitrogen in soil and provide light shade during warmer weather
Quick-growing companion that breaks up soil and deters flea beetles
Similar growing conditions and harvest timing, good succession planting
✗ Keep away from
Heavy feeders that compete for nutrients and may stunt mâche growth
Allelopathic properties inhibit growth of most leafy greens including mâche
Allelopathic compounds and aggressive root system suppress nearby plants
Nutrition Facts
Per 100g serving (USDA FoodData Central)