Commonwealth Avenue climbs the long rise out of Newton with grass medians on both sides and carriage lanes running quiet beside the traffic. The Edge Lawn & Landscape works the yards along that grade and the side streets that spill off it — cutting on schedule, trimming tight around posts and trunks, edging until every border reads as a drawn line. Early-season cleanups strip out the winter mess; late-season cleanups clear the leaf fall before it smothers the turf. A hillside lawn shows every unevenness the light can find, so the cut has to be level and the lines have to be straight. Done right, you notice the house instead of the yard, and that is exactly the idea.