Out by Cedar Niles Park the prairie grass shrugs off August without asking anyone, but a fescue lawn needs help to get through the same weeks. Green Head Systems LLC handles that stretch carefully — mowing high so the crowns stay shaded, trimming and edging without scalping the dry spots, leaving clippings on the lawn where the moisture belongs. Feeding and weed control land on the calendar the turf actually keeps rather than the one that happens to be convenient. September aeration and overseeding are where a thin summer lawn gets its comeback. By mid-October the color is back across the whole yard, and that is the part worth the work.