The oaks around Faxon Park throw a shade so deep that the grass beneath them has to be coaxed rather than commanded. Shore Tree Service handles the lawn side of yards like that in Quincy — mowing under old canopy, trimming the tight ground around trunks and roots, keeping the edges clean, and clearing the litter that comes down all summer. Shade turf wants a higher cut and a lighter touch, and knowing that is most of the difference between thin and thick. In high summer, standing under those trees on a lawn that is finally holding its color, the whole yard feels ten degrees cooler than the street. That combination of old shade and good grass is worth the patience it takes.