Small lateral heads may be harvested from early cabbage if the plants are left in the garden after the main head is removed. Cut carefully just beneath the solid head, leaving the loose, older leaves uninjured. Sprinkle a small amount of fertilizer around each plant and water in. These small, brussels sproutslike heads develop from buds located in the axils of older leaves. They should be harvested when they are a good size and firm. Their flavor, color, and texture is excellent. Cabbage grows best under cool conditions, as do the secondary heads.