Picea abies outside of its native range, and one of the most economically important coniferous species in Europe. It is used as an ornamental tree in parks and gardens. It is also widely planted for use as a Christmas tree. Every Christmas, the Norwegian capital city, Oslo, provides the cities of London (the Trafalgar Square Christmas tree), Edinburgh and Washington D.C. with a Norway spruce, which is placed at the most central square of each city. This is mainly a sign of gratitude for the aid these countries gave during the Second World War. In North America, Norway spruce is widely planted,
Brussels Christmas tree increased to 25,000. Due to concerns over vandalism during New Year's celebrations in the Grand Place, it was announced in early December that the tree would be taken down on 28 December, instead of early January, as was the case with the real trees in the past. Brussels Christmas tree The Brussels Christmas tree is a Christmas tree erected annually in the Grand Place, Brussels, Belgium. It has traditionally been a real tree either from the Ardennes forest, from the city of Helsinki or from different countries as diplomatic gift, except in 2012 when it was replaced with an abstract