Under the big oaks at Pine Hill the light comes down in pieces, and the grass there grows thin and slow the way shaded grass does. The Green Man Landscaping and Stonework works the lawns of Dover's older lots, where field walls still run through the back yards and mowing means going around a century's worth of obstacles. October is the long month — the leaves come down in waves, so the cleanup is really several cleanups wearing one name. Then spring, and the first cut of a lawn that has been waiting under snow since December. Grass kept even against old walls and old trees looks better than either would on its own.