This wikipedia entry on Christmas Tree is fascinating, and seems to run counter to what I was taught as a JW:
http://en.wikipedia.org/wiki/Christmas_tree
The Christmas tree is a decorated evergreen coniferous tree, real or artificial, and a tradition associated with the celebration of Christmas. The Christmas tree is often brought into a home, but can also be used in the open, and can be decorated with Christmas lights (originally candles), ornaments, garlands and tinsel during the days around Christmas. An angel or star is often placed at the top of the tree, representing the host of angels or the Star of Bethlehem from the Nativity. The tradition of decorating an evergreen tree at Christmas started in Germany in the 16th century.
The origin of the Christmas tree is obscured by uncertainties of oral histories of pre-literate European cultures. For example, according to Christian lore, the Christmas tree is associated with St Boniface and the German town of Geismar. Sometime in St Boniface's lifetime (c. 672-754) he cut down the tree of Thor in order to disprove the legitimacy of the Norse gods to the local German tribe. St. Boniface saw a fir tree growing in the roots of the old oak. Taking this as a sign of the Christian faith, he said "...let Christ be at the center of your households..." using the fir tree as a symbol of Christianity. [ 1 ]
The tradition of the Christmas tree as it is today known is fairly young. It was established by Martin Luther as a Protestant counterpart to the Catholic Nativity scene. Luther established the Christmas tree as a symbol of the Tree of Life in the Garden of Eden. [ 2 ]
BTS