The white dome of San Xavier del Bac catches the last of the light south of Tucson, and by then the day's heat is rolling off the flats in one long exhale. SOUTH QUALITY LANDSCAPING LLC works the yards on this side of town — mowing, edging, string trimming, and clearing what collects along the Julian Wash and the streets that feed it. Autumn is the forgiving stretch, with mild mornings and grass that has finally slowed; summer is the other kind, weekly and early and done before noon. Beds get weeded, rock gets cleaned out, and the clippings leave with the crew. These are lived-in yards — kids, dogs, a ramada for shade — and they are kept that way on purpose.