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How to Harvest and Store Lettuce

Lettuce will be ready to harvest about 45 to 60 days after planting, longer if planted in autumn or winter.

Lettuce grows best and tastes sweetest when harvested in cool weather. When the weather gets too warm–daytime temperatures greater than 75°F/24°C and nighttime temperatures above 60°F/16°C–lettuce will send up a seed stalk (called bolting) and leaves will become bitter.

Harvest loose-headed leaf lettuce when the leaves are large enough to use—just 2 to 3 inches (5-7 cm) long.

Harvest Bibb and Butterhead types of lettuce—with large ruffly outer leaves surrounding a soft, folded heart—when the leaves begin to cup inward to form a loose head or wait until they form a rosette at full size—6 to 8 inches (15-20 cm) across.

Harvest Romaine lettuce, also called Cos lettuce, when the leaves have elongated, formed midribs, and overlapped to form a fairly tight head–about 6 to 8 inches tall.

Harvest Crisphead lettuce—such as Iceberg with a solid, tight, spherical head–when heads are medium-size (6 to 8 inches/15-20 cm), round, and firm.

Pick all lettuce before a seed stalk forms.

Young leaves will be the tastiest and most nutritious. Baby leaves are best for tender salads.

If hot weather is predicted it is better to harvest the crop and store it in the refrigerator than watch it go to seed and become inedible. (Bitter lettuce leaves can be used as a tangy accent in salads.)

Content created and supplied by: Alberto010 (via Opera News )

Butterhead Cos lettuce Harvest Crisphead Harvest Romaine Iceberg


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