Spring reaches Chatham on the sound of a freight crossing and the first mower of the year on Main Street. Callander's Nursery & Landscaping, Inc. opens the season with cleanups — raking the winter's litter off the village lawns, edging the beds, laying fresh mulch dark against new green. Then it settles into the weekly rhythm: mowing, trimming close to porch posts and picket fences, keeping the strip between sidewalk and curb sharp. Kinderhook Creek runs high in April and the lawns near it come back thick, which is a happy problem for anyone with a good blade. By the time the marquee lights up on a summer evening, the yards along the street look cared for from the road.