April in the limestone valley southwest of Hackettstown is a loud green — pastures turning over almost overnight, the first mow of the year leaving a smell that stops people on their porches. Kelly Green Lawn Care starts its season in that week and rides it through: cutting, trimming, feeding and seeding the thin spots until a lawn thickens into something a bare foot enjoys. Summer brings the discipline of a taller blade height and a sharp edge along every walk. Autumn brings the rakes. The name sets a standard for a color, and every visit is an argument for it.