Lettuce is a fast-growing leafy vegetable valued for its tender, crisp leaves used in salads, sandwiches, burgers, and fresh platters. It is widely appreciated for its mild flavour, refreshing texture, and high water content. In Kenya, lettuce performs well in cool highland and irrigated regions such as Kiambu, Nyandarua, Nyeri, Nakuru, Meru, and parts of the Rift Valley. The crop produces loose or compact heads depending on the variety, and supports quick harvesting cycles.

Varieties
Common types include Iceberg, Romaine (Cos), Butterhead, and loose-leaf varieties. Iceberg produces tight, crunchy heads, while Romaine offers elongated leaves with a firm texture. Butterhead varieties provide soft, tender leaves, and loose-leaf types allow repeated harvesting. Hybrid varieties offer uniform growth, improved shelf life, and better heat tolerance.

Growing Conditions
Best growth occurs in cool temperatures of 15–22 °C and rainfall of 600–1,000 mm with consistent moisture. The crop performs well in fertile, well-drained loamy soils rich in organic matter with a pH of 6.0–7.0. Full sunlight to partial shade supports quality leaf development. High temperatures reduce quality and may cause bitterness or early bolting.

Growth Cycle
Growth begins from seeds and develops into compact or loose leafy plants, depending on the variety. Leaves or heads mature quickly and are harvested at the desired size. Continuous harvesting in loose-leaf types supports extended production cycles.

Nutritional Value
Lettuce contains vitamins A, C, and K, folate, fibre, and antioxidants. These nutrients support hydration, digestion, and overall wellness while contributing to a balanced diet.

Uses & Market Potential
Lettuce is used fresh in salads, sandwiches, wraps, and fast-food preparation. It also supplies supermarkets, hotels, and fresh produce markets. Rising demand for fresh and healthy foods creates strong opportunities for commercial production and value addition.