This was prairie, and then farmland, and now it is Bloomingdale, but the sky above it never changed: big and open, with weather visible from a long way off. Sterling Acres Inc. keeps the ground beneath that sky in order with mowing, edging, trimming and the seasonal cleanups a full Illinois year requires. May is when the work truly begins, the turf thick, the growth quick, the mowing constant. There is something plain and good about a wide, even lawn cut in clean passes with the edges held true. It looks like someone is paying attention, because someone is.