Good yards are mostly about line — where grass stops and concrete starts, where the bed edge curves, how the whole thing reads from the sidewalk. Sherwood Landscape Design & Tree Service works that way on the lawns of Long Beach: mowing on rhythm, cutting edges that stay legible for a week, trimming the awkward corners, clearing the season's debris so nothing blurs the shape. In June, with the hydrangeas coming on along Riverside Boulevard, a well-drawn lawn makes the whole front of a house sit up. The island is small and everything is seen from the street. That alone is reason to be exact.