First mow of May in Ocean Heights: dew still on everything, the dirt lanes soft, and grass that grew all through a mild island winter waiting to be brought back to order. Fullers Landscaping opens the Oak Bluffs season right there and keeps it running — mowing, string trimming, edging, and raking out whatever the cold months left behind. The work is unglamorous and completely visible, which turns out to be a good combination. By the time the summer houses open their shutters, the yards are already even and green, as though they had never gone quiet at all. Regular weeks, steady hands, a lawn that holds its shape.