Down toward Beech Island and Jackson the land flattens out on its way to the Savannah, and turning bare dirt into a lawn there takes sod and water in equal measure. Palmetto Sod & Irrigation LLC handles both — grading and laying sod seam to seam like a quilt, then setting or repairing the irrigation that keeps it alive through a Carolina July. Spring is the season for it: warm ground, enough rain to help the roots take hold. This soil gives water back to the sky too readily to forgive a dry week, so the heads and the zones matter every bit as much as the grass. By the third week the seams have vanished and it is simply a lawn.