By the middle of June the far shore of Dorothy Pond goes soft and green, and the yards climbing away from the water want cutting every week. Gramps Lawn Care & Construction Inc. keeps those Millbury lawns on a rhythm — mown, edged, the clippings gone, the trim line drawn clean along walks and beds. Spring starts with rake work, pulling out the winter's grit and the last oak leaves that hid under the snow. Autumn closes the same way, in long amber light, with leaves cleared before they mat down and smother the grass. A lawn kept honestly all summer is a small thing, and it is the first thing anyone sees.