There is a week in Durham when the last of the leaves come down off the ridges and the first hard frost silvers the hayfields along the Coginchaug — and that is the week the work turns, rakes and mowers giving way to plow and salt. FPO Landscaping LLC follows that turn closely: spring and fall cleanups, mowing through the long green middle of the year, mulch laid dark around the beds, brush clearing and dirt work where the land needs reshaping, a dumpster set down for the hauling-out, and snow removal and salting once the valley goes white. It is honest, physical work, and it shows — a lawn cut clean to its edges, a bed freshly mulched and holding its line, a driveway opened before the school buses climb Route 17 in the dark. The crew works on all aspects of an outdoor living space, which in this part of Middlesex County means shoulder-to-shoulder with old stone walls, sugar maples, and ground that remembers being farmed. Come thaw, the beds are turned again, and the whole cycle leans back toward green.