August in the Cranbury end of Norwalk goes gold at the edges — long hot afternoons, a sea breeze that arrives too late to do much, and lawns that thin out fast in the stretch between rains. Sprinkler systems answer that particular kind of dry: water arriving early and evenly while the street is still quiet, so the grass never has to find out how hot it got. It is unglamorous and mostly invisible, which is the point; a lawn that stays green through the last weeks of summer looks like luck rather than plumbing. This is Norwalk ground, sandy in places, shaded in others, and it rewards attention. Lawn care here means thinking about water first.