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,
Boston Christmas Tree the lighting and the day after. In 2015, CTV produced and aired a 30-second commercial over a period of 10 days. They also provided digital promotion and news promotions. CTV estimates that this contribution represents a benefit to the province. The tree is also promoted on Facebook and Instagram. Boston Christmas Tree The Boston Christmas Tree is the City of Boston, Massachusetts' official Christmas tree. A tree has been lit each year since 1941, and since 1971 it has been given to the people of Boston by the people of Nova Scotia in thanks for their assistance after the 1917