In spring the Heritage Trail runs bright along the river below downtown Macon and the whole city seems to lean outdoors at once. Trey's Lawn Service takes that season as it comes — mowing on a schedule, edging the walks, trimming the corners a mower cannot reach. Grass moves quickly here in April, and staying ahead of it is most of the discipline. There is a plain satisfaction in a yard cut even and swept clean, with no clippings tracked toward the door. One property, then the next, until the light goes.