A yard that's looked after gives something back every day — grass you can cross barefoot in July, a driveway that lets you leave for work without a second thought. Kershaw Landscape tends that quiet exchange in Derry, New Hampshire, where old stone walls run off into the birches and the brick along Broadway holds the low afternoon light. Summer is mowing lines drawn straight across rolling, granite-boned ground, edges cut clean where green meets pavement, the smell of fresh clippings hanging in the humidity. Winter is headlights at four in the morning, a blade pushing the banks back off the dooryard, the walk opened before the first cup of coffee. The result is the whole point: a property that holds its season, whatever the season asks of it.