With their persistent red leaves (bracts), poinsettias are everywhere in America during the holidays. They are native to southern Mexico and Central America.
- Poinsettias are perennials and bloom during the winter.
- They grow in the fall.
- Their blooming ability is lowered when night temperatures are above 70 degrees Fahrenheit.
- They require fourteen straight hours of darkness each fall night.
Isn’t it strange that cold and darkness are required for this bright, celebratory plant to bloom?