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Top Questions About Poinsettia Plants

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Questions About Poinsettia Plants

  • Answered by
    Nikki on
    November 9, 2012
    Certified Expert
    A.

    If the temps are going to drop below 55 degrees F., I would certainly consider bringing the poinsettia plant inside. They are very susceptible to cold and will not do well if left outdoors in temps that fall below this, even with coverage.

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  • Answered by
    austin on
    November 9, 2012
    A.

    Sorry, I was not specific – I would like to know the temp at which POINSETTIAS need to be protected from the cold ... either taken inside or covered in Florida.

    Thanks

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  • Answered by
    AnnsGreeneHaus on
    November 9, 2012
    A.

    It depends on the plant. Some tropicals do not like temperatures below 55, and show it very quickly by leaf loss, leaf droop or curl and leaf discoloration. Some plants are slower to show cold shock, and you may not see these signs immediately. Some tropicals will tolerate brief periods of cold temps, but not prolonged or repeatedly. Again, it depends on the plant.

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  • Answered by
    AnnsGreeneHaus on
    November 19, 2012
    A.

    This article has excellent poinsetttia information: https://www.gardeningknowhow.com/ornamental/flowers/poinsettia/how-to-make-poinsettia-turn-red-make-a-poinsettia-rebloom.htm

    Other articles are listed at the end of above article.

    I wou ld suggest that while poinsettias are a bit paradoxical in that they are "tropical succulents", one should not let the plant dry out. It has been my experience with growing poinsettias and other euphorbias, the first thing they do is drop leaves when stressed. Don't over compensate and keep them too wet, or you will encounter root problems.

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  • Answered by
    theficuswrangler on
    December 1, 2013
    A.

    The link has good info, and since you don't say how long you've been doing the 12-hour-darkness thing, maybe you just need to keep it up. But you might want to be aware that they don't always rebloom, no matter what you do. If this one doesn't work, keep trying.

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  • Answered by
    AnnsGreeneHaus on
    November 12, 2013
    A.

    This link will take you to a very informative, detailed article on 'reblooming' poinsettias: https://www.gardeningknowhow.com/ornamental/flowers/poinsettia/how-to-make-poinsettia-turn-red-make-a-poinsettia-rebloom.htm

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  • Answered by
    Nikki on
    January 30, 2014
    Certified Expert
    A.

    No, clear plastic will not work. You need something to diffuse the direct light, like a frosted plastic.

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  • Answered by
    Nikki on
    April 19, 2014
    Certified Expert
  • Answered by
    theficuswrangler on
    June 12, 2014
    A.

    It sounds like a fungal infection. Remove affected leaves, increase air circulation, decrease humidity if at all possible. You can try using a fungicide. You might want to contact the nearest botanical garden for advice, or to help you find a master gardener to advise you.

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