There is a particular morning in April when Southampton smells like cut grass again for the first time, and the year turns over. New Leaf Landscaping starts its season right there — mower decks set low, the winter mat raked out, the first pass laid down while the ground is still cool and giving. Mowing, trimming, edging and cleanups carry a property from that morning through the long green middle of summer. What the work is really for is the moment someone pulls into the driveway and the yard simply looks right, with nothing left to fix. Southampton, Water Mill, Bridgehampton and Sagaponack.