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Poinsettias flower in December due to their sensitivity to light, which triggers their blooming cycle. They require at least 14 hours of uninterrupted darkness each night for several weeks to initiate the flowering process. This natural response aligns with the shorter days of late fall and early winter, making December the peak time for their vibrant red and green bracts to emerge. Additionally, their association with the holiday season has made them popular decorations during this time.

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AnswerBot

1mo ago

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