lettuce

Lettuce (Lactuca sativa), commonly known as lettuce, is a highly versatile and widely cultivated leafy vegetable, cherished around the globe for its crisp texture and mild flavor. It belongs to the Asteraceae family and has been a staple in diets for thousands of years, with origins tracing back to ancient Egypt. Lettuce comes in a variety of forms, including crisphead (or iceberg), butterhead (including Boston and Bibb types), romaine (or cos), and leaf (including red, green, and oakleaf varieties), each offering distinct tastes and textures. This diversity allows lettuce to play a central role in culinary applications, from salads and sandwiches to wraps and garnishes. Its high water content makes it a refreshing choice, especially in warm climates and during hot weather. Cultivation of Lactuca sativa is widespread due to its adaptability to different environments, although it prefers cooler temperatures for optimal growth. Lettuce grows best in rich, moist, well-drained soils with a pH between 6.0 and 6.8, and it can be grown in many temperate and subtropical regions of the world. Most varieties are relatively fast-growing, with many reaching harvest readiness in 30 to 60 days from planting, making it a favorite among home gardeners and commercial producers alike. Lettuce is also valued for its nutritional content, offering vitamins A and K, along with folate and iron. However, it's its ability to be grown year-round in controlled environments, like greenhouses and hydroponic systems, that truly showcases the plant's versatility, ensuring a steady supply of fresh greens regardless of the season.

Lettuce can be directly sown or transplanted into the garden. It prefers cool temperatures and plenty of moisture.

The map shows known occurrence points of <strong>Lactuca sativa</strong> recorded in scientific biodiversity databases.

Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> — Global Biodiversity Information Facility