LAUREL SPRINGS – N.C. Agriculture Commissioner Steve Troxler and other dignitaries will light a ceremonial Christmas Tree to signal the start of the state’s annual Christmas tree harvest Wednesday at the Upper Mountain Research Station in Laurel Springs. The event is being held at the Research Station’s Tobacco Trust Fund Christmas Tree Seed Center, a soon-to-be completed facility that will help establish a North Carolina Fraser Fir Christmas tree seedling source for growers.