Yost Chimney & Landworks keeps its mowers on the rolling ground of Weare, New Hampshire, where the Piscataquog winds between hayfields and stone walls and the back roads climb toward Craney Hill. Lawn care here means reading a yard that runs to ledge and maple shade — cutting it clean, trimming close to the granite, edging a line that holds sharp against a gravel drive. There is a real pleasure in the last pass of an afternoon: grass laid down in even stripes, clippings swept off the walk, a dooryard that looks tended all the way from the road. Come autumn the work runs ahead of the leaf drop, hauling off what the sugar maples let go so the turf goes into the cold breathing easy. It is plain work, done close to the ground, and it leaves a place looking like somebody loves it.