Spring arrives in Lambertville along Swan Creek first, in the green that shows at the water's edge before it shows anywhere else in town. Ribsams Landscapes inc. starts the season there and works outward — mowing, edging, trimming, and the spring and fall cleanups that bracket the year. When the ballfields go quiet and the cold sets in, the work becomes plowing driveways and clearing walkways so a household can be on the road by seven. A lawn cut evenly across a sloping yard is a small thing to be proud of, and so is a driveway open before the coffee is made.