On a clear April day you can pick out the Sourland ridge sitting low on Somerset's western horizon, and that is about when the mowers start. Zimmerman Landscaping LLC opens the year with spring cleanups — beds cleared, the lawn raked out, the ground given room to wake up. Then the rotation sets in: mowing on a set schedule, trimming what the machine cannot reach, edging the walks so the turf ends where it should. By November the order reverses, leaves gathered off the grass and the property put to bed. A lawn in Franklin Township asks for attention roughly thirty weeks a year, and the ones that get it show it.