National Christmas Tree (United States) tree was cut down and replaced with double row of willow oaks. In 1934, the National Christmas Tree was relocated to Lafayette Park north of the White House. The 1931 Norway spruce had again become damaged, and the National Park Service purchased two "Koster" blue spruce cultivars to plant on the west side of Sherman Square with the intent of using alternating between trees each year. But when it became clear later that year that the National Christmas Tree would have to be moved from Sherman Square, the agency asked the Commission of Fine Arts (which had partial jurisdiction over
Christmas tree cultivation and by the 1950s farmers were shearing and pruning trees to meet customer demands. The Christmas tree market burgeoned through the 1960s and 1970s, but from the late 1980s onward prices and the market for natural Christmas trees declined. In the early 21st century, nearly 98 percent of all natural (non-artificial) Christmas trees sold worldwide were grown on tree farms. Christmas tree farms are best located on relatively level land which is free of obstructions. In the past, Christmas tree farmers established their plantations on less desirable agricultural plots or "wastelands of agriculture". However, emphasis in modern Christmas tree farming