By the end of October the maples along the old Route 4 corridor have let go, and the mornings come in with an edge on them. ProLawn Landscaping runs both halves of that turn — mowing and trimming right through the last warm week, then the big fall cleanup, then the plow going on the truck. Winter means driveways and walks cleared, salt down on the slick spots, the same properties tended in the dark that were mowed in the light. Come April it all runs backwards: snow off the lawn, thatch raked out, the mowers back out for the opening pass. Two kinds of work, one set of yards, watched the whole way around the calendar.