North of Buffalo the land goes flat and generous, subdivisions laid out in long curves between Transit Road and the slow water of Tonawanda Creek. Greenleaf Landscape Services LLC works those East Amherst streets where lawns run front to back without a fence in sight and every cut is on display to the whole cul-de-sac. Mowing on a weekly line, trimming close to walks and posts, edging the driveway, mulch refreshed in spring, shrubs kept in shape, leaves cleared in fall — the routine that keeps an open lawn looking deliberate. Flat ground shows every wobble, so the passes stay straight and the corners stay square. It's a neighborhood where one good lawn sets the tone for the block, and that is a fine thing to be responsible for.