They say poinsettias are native to South America, then why is it that they say to bloom again it has to have all this constant darkness? I have been told you need to put them in a closet or provide darkness for certain months...in the wild they don't get that. I have one from last year that I almost threw out after the holidays...I sat it outside on the porch and during the summer it grew very well. I brought it in this fall and now it's in my bedroom window. It's nice and healthy but green.... just wondered how to get it to bloom.
These articles have information on the origination and the history of the Poinsettia in the United States.
Also information on the care of your plant.