At noon in July the oaks over Kennesaw throw the only cool there is, and the sun-line moves across a lawn like a slow tide. Sunhat Outdoor Services works right through it, mowing and trimming yards on a schedule that does not flinch at Georgia heat. Grass under heavy shade and grass out in open sun want different handling, and both get it — cut at a height that keeps roots covered and color holding. Edges along the walk and drive are run clean, then the blower clears the hard surfaces. By evening, when the heat finally backs off, the yard is waiting.