Calverton sits on sand — pine barrens ground that drains almost as fast as it rains, pitch pine and scrub oak at the edges, the Peconic River barely started nearby. Cedar Fields Landscaping Inc mows and maintains lawns in exactly that soil, where turf wants a taller cut and a steady hand through an East End August. The work is weekly mowing, trimming along beds and fence lines, edging the walks, and the cleanups that start and finish a Long Island growing season. On a June morning with salt air still drifting inland, a freshly striped lawn against the pines is a genuinely good sight. Riverhead, Manorville, Wading River and the roads between are all within the run.