Blue Hill grows things on top of granite — a few inches of soil over ledge, moss in the shade, and grass that comes in green and fast once June arrives. Green Man Design Group works with that ground rather than against it, mowing on a weekly rhythm, trimming close to stone walls and outcrops, holding bed lines honest all the way through the growing season. On a warm afternoon with the mountain trail full of walkers and the bay flat below, a freshly cut lawn is an ordinary kind of beauty. Cleanup in spring, mulch in early summer, mowing through the heat, and the leaf haul when the maples let go — the year has a shape and the work keeps to it. What gets left behind is simple: a tidy yard, clean edges, nothing out of place.