In the Sakarya Basin, located within the Söğüt and İnhisar districts of Bilecik, Turkey, a significant planting of lettuce roots has taken place, with a total of 60 million roots now in the ground, which is about 20% of the country's annual lettuce requirement. This planting is done across several greenhouses in the villages of Çaltı, Geçitli, Hamitabat, Yakacık, and Tuzaklı, in the Sakarya Valley, following the conclusion of the tomato and cucumber harvest. The winter lettuce cultivation in this region, which is done in greenhouses for approximately 11 months, is anticipating a promising season after last year's successful sales, despite the increase in prices during winter. The produced lettuce is distributed to major cities such as Ankara, Istanbul, Bursa, and İzmit.