Across Lake Waban the Hunnewell topiaries stand in their terraces like a long lesson in patience, and Wellesley has never entirely stopped taking notes. Hayden Landscape Corporation holds lawns and grounds to that kind of attention, mowing, edging, trimming, mulching, and running cleanups at either end of the growing season. Once the water goes flat and gray and hard, the same crews turn to plowing driveways, clearing walks, and treating the ice that settles in every shaded turnaround. Snow nights run long, but there is nothing quite like a wide black cleared drive at first light. Then the thaw arrives and the grass begins asking for things again.