Mache

A delicate, nutty-flavored salad green that thrives in cold weather when most other salad crops have finished for the season. Mache, also known as corn salad or lambs lettuce, forms small rosettes of soft, spoon-shaped leaves with a mild, slightly sweet flavor. Sow in early fall for winter and early spring harvests, as it tolerates freezing temperatures remarkably well. The small plants grow slowly but require very little attention and are virtually pest-free in cool weather.

Direct sow 1/4 inch deep in late summer through early fall for the most reliable results. Seeds germinate in 7-14 days at 50-60°F. Warm soil above 70°F causes poor germination; wait for cool weather. Scatter seeds thickly; mache grows well in dense plantings. Do not transplant. Pre-chilling seeds in the refrigerator for a week can improve germination. Seeds remain viable for 3-5 years.

Direct sow mache seeds 1/4 inch deep in late summer through early fall for winter and spring harvest, or in very early spring. Seeds germinate best in cool soil (50-60°F) and take 7-14 days. Scatter seeds thickly in wide rows or beds and thin to 3-4 inches apart. Mache does not transplant well and should be direct-sown.

Mache is a cool-season specialist that thrives at 40-60°F and bolts rapidly in temperatures above 70°F. It is remarkably cold-hardy and can survive down to 5°F under row covers or cold frames. Fall-sown mache overwinters as small rosettes and grows vigorously as spring arrives.

The tiny rosettes grow slowly, reaching harvest size in 45-60 days. Mache requires minimal care once established. Water lightly and avoid fertilizing, as slow growth produces the most concentrated, nutty flavor. In spring, harvest promptly before warming temperatures trigger rapid bolting. Mache self-sows readily if allowed to flower.

Mache grows well under taller crops that provide light shade in transitional seasons. It makes an excellent ground-level companion beneath fall brassicas like kale and Brussels sprouts. Plant in paths between raised beds as an edible ground cover. Avoid planting near vigorous growers that could overshadow the tiny rosettes.

Mache grows in most well-drained soils with a pH of 6.0-7.0. It tolerates poor soil better than most salad greens and actually produces more flavorful leaves in lean conditions. Avoid heavy fertilization, which produces bland growth prone to disease. A light compost amendment is sufficient. Good drainage is essential for winter growing to prevent crown rot during wet, cold periods.

Ideal Temperature

Hardiness Zone Compatibility

Harvest mache rosettes when leaves are 2-3 inches long, typically 45-60 days from sowing. Cut entire rosettes at the soil level or pull whole plants. Mache does not regrow after cutting. The small, round leaves bruise easily, so handle gently. Harvest in the morning when leaves are most turgid. Once plants begin to elongate and flower, flavor declines. Winter-harvested mache is especially sweet and nutty.

Storage & Preservation

Store unwashed mache in a plastic bag in the refrigerator for 3-5 days. The delicate leaves wilt quickly, so use soon after harvest. Do not wash until ready to serve. Mache does not freeze or dry well. The best preservation strategy is to stagger plantings for continuous fresh harvest. In the garden, mache stores itself through winter under row covers, staying fresh for months.

Troubleshooting Common Problems

The biggest challenge is the slow growth rate; patience is required. Bolting occurs rapidly when temperatures exceed 70°F; time plantings for cool seasons. The small rosettes are labor-intensive to harvest. Germination is poor in warm soil above 70°F; fall sowing is most reliable. Mache can be overwhelmed by weeds due to slow establishment; keep beds clean.

Growing Tips

1. Timing is everything with mache — sow in late summer through early fall when soil temperatures drop below 70°F. Warm soil causes poor, erratic germination and is the number one reason gardeners fail with this crop. If in doubt, wait until September.
2. Do not transplant mache. The tiny seedlings have delicate root systems that do not survive disturbance. Always direct sow in the final growing location. Scatter seeds thickly and thin minimally — mache thrives in dense stands.
3. Resist the urge to fertilize. Mache produces its best flavor and most disease-resistant growth in lean soil with only a light compost amendment. Heavy feeding produces watery, bland leaves prone to downy mildew.
4. Install row covers or cold frames before the first hard freeze, not after. This simple step extends the harvest season by months and allows mache to produce fresh salad greens through the entire winter in zones 5-8.
5. Water sparingly once plants are established. Mache's biggest enemy in winter is excess moisture around the crown, which leads to rot. Water only when the top inch of soil is dry, and always in the morning so foliage dries before nightfall.
6. Let some plants bolt and flower in spring — mache self-sows prolifically, and volunteer seedlings will emerge automatically the following autumn. Mark the area and avoid disturbing the soil through summer to preserve the seed bank.
7. Mache makes an excellent living mulch and ground cover beneath taller fall crops like kale, Brussels sprouts, and leeks. The low rosettes suppress weeds and protect the soil surface while producing a bonus harvest of salad greens.
8. For the sweetest, most intensely flavored mache, harvest after a hard frost or during the coldest part of winter. Like many cold-hardy greens, mache converts starches to sugars as a natural antifreeze mechanism, dramatically improving flavor.