In New Rochelle the morning arrives twice — once over the water at Hudson Park, and again a half hour later up the hill, where the sycamores hold the light a little longer. Marenco Lawn Inc. works those Sound-shore blocks and the Huguenot streets behind them, mowing lawns that have to look right against old stone walls and older trees. The work is ordinary and exacting: a straight pass, a clean edge where turf meets slate, clippings off the walk before the truck pulls away. By June the yards near Echo Bay carry that deep coastal green, and by October there are leaves enough to fill a small harbor. Every lot here is small enough that the details are the whole job — which is exactly why they get them.