There is an hour in early summer, just after the mowers go quiet, when fireflies rise out of the low wet ground in the kettles and swales the glaciers left behind here. Ground Guardians Landscaping spends its days making the lawns above those hollows look intentional: cut clean, edged along the drive, trimmed close where a mower cannot reach. Dorr Township grows grass generously in June, and staying ahead of it takes a route, a schedule and a stubborn streak. What they want is simple enough, a yard a family actually wants to sit in at dusk. Lawn care in Dorr and the nearby towns.