Midday in Dallas the heat stands perfectly still, and the only thing moving is the wind coming off the reservoir water east of town. GreenCo Lawn Solutions works straight through it, mowing yard by yard, running the trimmer along walls and posts, cutting the edge back where the grass has crept out onto the concrete. A lawn in a Georgia July needs cutting more than it needs anything else, and it needs it on time. The drive gets swept, the clippings come off the steps, and the yard reads finished from the curb. Come back next week and do the same thing again — that is how a lawn keeps its shape.