March at Speedwell Lake sounds like water leaving — the spillway running loud, the last grey ice going soft along the shallows. That is the week Portillo Landscaping LLC starts its Morristown year, raking winter out of the beds, cutting back what the cold broke, opening the soil so fresh mulch can go down dark and even. By the first true mowing every lawn on the route has already been walked twice, and the difference is visible from the curb. All summer the schedule holds — mow, trim, edge, move on — because grass rewards regularity more than it rewards effort. When the maples let go in November the crew hauls the leaves off and hands the yard back to the frost in good order.