Fog comes up the Back River early on a Weymouth summer morning and hangs in the trees along Great Esker Park until the sun burns it off. jgo landscaping is usually rolling by then — mowing, edging, string trimming, and the cleanups that bookend a South Shore growing season. Yards here run from tight village lots to long sloped lawns, and each asks for a slightly different line of attack. What does not change is the finish: an even cut, a clean edge where grass meets pavement, and clippings blown off the walk before the truck pulls away. By November the leaves come down all at once, and the work turns to hauling them out.