August in Brockton can go a long while without rain — the ground near Beaver Brook cracks a little and lawns go quiet and dormant. Fred's Landscaping & Irrigation reads that stretch and mows accordingly, raising the deck, keeping the blades sharp, cutting less often so the turf keeps what it has. When the rain finally returns, the grass answers within a week. That is the reward of a full season's attention: mowing, trimming, edging and the tidy-ups at either end of the year, all of it aimed at a lawn that can take a dry month and come back green.