There is nothing between Downers Grove and Iowa to slow a December wind, and it arrives across the open ground west of town with the snow already moving sideways. POWERFUL LANDSCAPING works into that — plowing drives and lots, shoveling walks down to the surface, salting the spots that ice over twice in one night. Come spring the same trucks carry mowers, and the work turns to weekly cutting, trimming, edging and hauling off whatever the season drops. A yard in DuPage County has to survive both extremes and still look like somebody's home. Handling both ends of that is what the work is.