The Charles River begins in Milford, in the low wet ground of Cedar Swamp, and for its first mile it is barely more than a brook shouldering through alder. Down To Earth Landscaping works the drier ground above it — mowing, trimming, and keeping edges honest where lawn meets bed and bed meets woods. April cleanups clear the matted leaves the thaw leaves behind, and mulch goes down before the black flies arrive. By July the same yards are cut on a rhythm the neighbors could set a watch by. This is a lawn-care outfit that likes a straight line and a clean finish, and Milford offers plenty of both.