Saturday morning by Billington Sea, the mower running, the stripes coming out of the machine straight enough to sight down. Evolve Mowing LLC does the thing its name says and does it on a schedule — weekly cutting all through the Plymouth growing season, string trimming around trees, posts and foundations, a sharp line where grass meets pavement. Turf here grows on old glacial sand and can go from lush to tired inside one dry week, so the timing of each cut is half the craft. Clippings handled, walks blown clear, gate latched on the way out. Somebody pulls in that evening and the yard simply looks right.