Fog comes up off the Savannah River before sunrise and hangs low over Port Wentworth yards, and that is when the mowers roll off the trailer. Cannon's Lawn Care works the cool hour first, cutting while the dew still beads on the blades, then edging a clean line where turf meets the driveway. By the time the day turns bright and heavy, the trimming is done and the clippings are blown off the walk. It is lawn care measured in straight passes and quiet streets. The reward is a yard that looks looked-after from the mailbox all the way to the back fence.