A block off Lincoln Park the back yards are fenced squares of grass, gates latched, and they take a beating from the paws and feet that use them daily. The Pup Yard Somerville keeps those yards in shape — mowing on a steady cycle, trimming close along fence lines and posts where a mower cannot reach, edging the walk, and clearing the yard out each spring and fall. In a city this dense, a fenced patch of green is somebody's whole outdoors, and it deserves to look and feel cared for. Summer means keeping ahead of the growth; November means getting the leaves out from the corners before they turn to mud. Gate closed behind, every time.