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.
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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.