Romaine Lettuce (Lactuca sativa), also known as cos lettuce, is a type of leaf lettuce known for its long, sturdy, upright leaves and crisp texture. It is a popular variety of lettuce in salads, particularly Caesar salads, and is prized for its slightly sweet flavor and crunchy ribs. Romaine has dark green leaves with a pale, crunchy stem, offering a good balance of taste and texture.
Romaine lettuce is nutrient-dense, providing a rich source of vitamins A, C, and K, as well as folate, fiber, and potassium. It is low in calories, making it a healthy addition to many dishes. Romaine is also known for its high water content, which helps with hydration.
Typically grown in cooler climates, romaine lettuce thrives in well-drained, nutrient-rich soil and requires moderate watering and ample sunlight for optimal growth. It is commonly found in supermarkets and is used fresh in salads, sandwiches, wraps, and as a garnish in a variety of dishes.