By the middle of August the light over Southbridge goes gold and the lawns on the high ground fade to a tired straw color, waiting on rain that takes its time. Evergreen Lawn Painting works with that — mowing at a height the grass can stand, trimming and edging so even a thin lawn reads sharp, and keeping color in a yard when the calendar is against it. Spring cleanups clear away the winter litter, and fall cleanups take the leaves off before they smother whatever is underneath. The whole aim is a lawn that looks alive from the sidewalk and stays that way from the first cut of the year to the last. In a town of hills and old streets, one green yard can lift an entire block.