At noon the Conyers water tower throws almost no shadow and the zoysia lies flat and tight under the heat. Upscale Turf Management works at that scale of detail — mowing to an even height, edging drives and sidewalks to a true line, trimming close, holding the turf uniform right up to the beds. Fine-textured Georgia grasses reward exactness and expose the opposite from halfway down the street. The aim is a lawn with no distractions in it, one continuous plane of green from curb to corner. Getting there takes patience, and it is the whole reason for the truck.