By late July in Bixby the Bermuda has thickened into a green dense enough to hold the heat, and the hour worth working is the one when shadows stretch east from the pecan trees. Guardian Lawn Care cuts in long parallel passes across the wide lots, letting the mown stripes catch what is left of the light. The trimmer cleans around mailbox posts, play sets and the base of every tree, and the border along the sidewalk comes back crisp. Grass clippings are blown off the drive so nothing tracks indoors. Week after week through the growing season, that keeps a Bixby yard looking like someone tends it, because someone does.