Endive is a highly nutritious bittersweet European green that is excellent in salads. Belgian endive or Witloof (white leaf) is known best for its ability to grow in the dark. Growing Tips: Sow directly in May-June, thin to 6”. After the first hard frost cut leaves to 1” of base. Roots should be removed and placed into outdoor or indoor forcing pits. Cover with 6” of sand or soil with roots upright. Keep dark. Endive is ready when the tops show up though the soil.