From the top of Prospect Hill you can see the whole compressed green of Somerville laid out below — every yard a small rectangle, every rectangle somebody's ongoing project. Liberty landscape, LLC works that grid through the flat heat of a July noon, mowing, edging, cutting the borders back so the shapes stay legible. Nothing is far apart in this city, and nothing is forgiving either: a mower has to fit through a gate, clippings cannot be left on a shared walk, and a hedge that leans over the sidewalk has to come back. Beds get cleared, shrubs get shaped, and the season's leaves get carried off rather than pushed to the curb. Seen from the hill, a well-kept block is unmistakable.