Harmon County lies about as flat as Oklahoma gets, and from a Hollis street you can watch a cotton field run all the way to where the sky sits down on it. Hollis yard spraying works the town's lawns against that big empty — weed control and fertilizer timed to the early warmth, so the bermuda comes out of dormancy thick instead of thin and spotty. Mowing follows through the long hot middle of the year, with trimming around fences and mailboxes and edging where the grass leans onto concrete. Wind off the Salt Fork country carries seed into every yard it passes, which makes staying ahead of the weeds a matter of showing up on time rather than working harder. A yard here that holds its color is a small green argument against a very wide horizon, and it is a good thing to leave behind.