Woburn's older blocks are generous with shade — heavy maples over narrow lots, roots close to the surface, back corners where grass long ago gave up trying. Artificial Lawn Store answers that with synthetic turf, laid flat and even in the places the sun never really reaches, plus the lawn care that keeps the surrounding yard in step with it. August is when the difference reads loudest, the rest of the street going tan in the heat while a turf lawn stays the color it was in May. Work runs from small dooryards near Central Square out to back gardens on the Burlington side of the city. The finish is the whole point: green edge to edge, no bare patch to apologize for.