Winter Density romaine lettuce seeds are really a butterhead/romaine cross. The heavy, compact, and extra-dark green heads stand about 20cm (8″) tall and display upright but tender leaves. Grow this unique, flavourful English variety in spring, summer, or fall; as it is frost tolerant and quite bolt resistant. On the coast, an August planting will overwinter as full-sized plants if given some protection from rain. Started as late as September, they may overwinter as small plants to head up in March.Â Winner of the RHS Award of Garden Merit.
Matures in 65 days.