Lettuce Lolla Red - Vegetable SeedsOverview Lettuce requires cool environment. The average mean temperature for growth and better taste is 13 16C. High temperature promotes seed stalk and causes bitter taste of leaves. It performs well in sandy loam and silt loam soils Variety Details Heavily frilled green leaves with dark red edges Compact and slower growing than other lettuce types Much darker than regular Lolla Rossa Approx seeds count 300