Christmas in May?

Why would I say such a thing as "Christmas in May?"?  Well, I have this beautiful  poinsettia  that is still beautiful --- it was purchased in December 2010 --                                              and this photo was taken May 23, 2011 ---- WOW -- it just does not want to die --- it even has new growth.  According to Aggie Horticulture the way to keep a poinsettia blooming for a ...