The ground under this part of the shore drains quick and sandy, which is why the hydrangeas do so well here and the lawns need a steady hand. Mynor's Landscaping and Tree Service gives them one — regular mowing through Islip's long growing season, edging along walks and driveways, trimming around beds and fence posts, and full cleanups when the year turns at either end. Ocean air keeps the grass going later than people expect, well past the point where mowers have gone quiet further inland. The measure of the work is a yard that looks the same good way every week, instead of only after some big push.