Drive east from Cimarron Hills and the lawns stop and the shortgrass takes over — blue grama, buffalo grass, a low tawny country that runs to the horizon. That contrast is what makes a green lawn worth something here; it is not the default, it is a choice. Fields of Green Mowing keeps up that end of the bargain with mowing, trimming, edging and seasonal cleanup. Cut it at the right height and the color deepens; cut it wrong at this altitude and the sun finds out by Tuesday. The pride is in a lawn that holds its green all week, edged clean where it meets the prairie's own idea of a lawn.