Belvidere gathers around its green square, a ring of Victorian porches and old shade trees on the height above the Delaware. NJ Landscape Contractors LLC keeps lawns across that country looking the part — mowing on a set rotation, trimming close to iron fences and stone steps, edging walks until the grass line is a drawn line. When the weather turns, the same crews take up plowing and shoveling, opening driveways and paths on the steep pitches where a car cannot get a run at it. Salt and ice control go where the north-facing slopes never see the sun. Summer or winter, the measure holds: you should be able to walk out your door without thinking about it.