Noon in midsummer out along Ryan Road, and the shade of the old plantings near Childs Park is the only cool thing for a mile. Veteran Lawn & Landscape mows through the heat of the Northampton season — trimming around trees and posts, cutting the edge back along the drive, hauling off whatever the yard has shed. July is when lawns are won or lost here; cut too short in a dry stretch and the valley sun finishes the job. Clearing rounds bracket the year, one to wake the turf up and one to put it away. And a mown lawn on a hot afternoon, striped and edged, still smells like the whole of a New England summer.