September mornings in Sussex County arrive with dew heavy enough to soak a boot, and the fields at the edge of town steam once the sun finally clears the treeline. Eco-Lawn of Sussex works the lawns around Franklin through that shoulder season and every other one — mowing, trimming, edging, aeration and overseeding, and the leaf cleanups that follow. Autumn is when a lawn is actually built up here; what goes down in September is what greens up in April. The work is unglamorous and cumulative, a little at a time until the turf grows thick enough to crowd out trouble on its own. Then the frost comes down the valley and the whole thing rests.