At Ledgewood the old Morris Canal still shows itself in the ground — a stone channel and the grade where boats were hauled over the hill — and spring comes up green along all of it. High Class Tree Service works the yards nearby with mowing, trimming, edging, brush and yard cleanups, and the steady upkeep that carries a property from April to November. Roxbury lawns run uneven, ledge in one spot and low wet ground in the next, and getting a level cut across that is the craft. A finished yard on a long May evening, with the light coming sideways through new leaves, is worth the sweat. The routine holds all summer and closes out with the leaf work when the hills turn.