At seven in the morning the grass around the Summerville square is silver with dew and the town is just beginning to move. Summerville Lawn Maintenance LLC starts its day about then, waiting out the wettest hour before the mowing begins so the cut comes off clean. From there it is a steady progression through the week — cutting, edging, trimming and clearing the drives and walks at each stop. Between Taylor Ridge and the mountain, this valley grows a strong stand of grass, and keeping up with it is a matter of routine rather than heroics. A yard held to that routine simply looks right, month after month, and that is the whole point.