West Grand Traverse Bay changes color hour by hour, slate at first light, hard blue by ten, silver again when the wind swings north. Grand Traverse Turf works the lawns above that water in Elmwood Charter Township, mowing, trimming and edging yards that tilt toward the shoreline. Sandy ground up here drains fast, so the cut is timed to the weather instead of the calendar. Little compares to a striped lawn with the bay standing open behind it and the drive blown clean. Cleanups bracket the green months at either end, and the grass takes its winter off.