There is a broad, low light over the Norwood airfield in October, the kind that makes a freshly cut lawn look like pressed felt. This landscaping business works under it — mowing, trimming, edging and hauling the season's leaves off before they smother the grass. Summer weeks run simply: cut, line, blow clean, move on to the next one. Winter is the other half of the job, plowing and shoveling drives and walks and treating the ice that arrives after every thaw. Norwood keeps both kinds of weather on hand, and so does the truck.