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Top Questions About Rose Of Sharon Plants

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Questions About Rose Of Sharon Plants

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  • Answered by
    Downtoearthdigs on
    October 7, 2017
    A.

    This is likely Powdery Mildew.

    Here is an article with more information.

    https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm

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  • Answered by
    BushDoctor on
    October 13, 2017
    Certified Expert
    A.

    In this case, I would wait until they die off. They will probably not open fully, as it is getting colder. This will not hurt them, though. It will encourage more blooming next year. Here is n article for more information: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm

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  • Answered by
    MichiganDot on
    November 1, 2017
    A.

    In zones 5-8, rose of sharon lives for decades. There are some in my neighborhood that are 25 years old and going strong. As with all flowering shrubs, it should be pruned annually to stay most productive. Remove 1/4 to 1/3 of the oldest stems yearly after they have grown to mature size.

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  • Answered by
    BushDoctor on
    November 6, 2017
    Certified Expert
    A.

    Yes. you can pluck these and keep the seeds for planting later. You wouldn't prune right now anyways. This should be done in spring. This will, in fact, force the shrub to grow back more vigorous. This article will give you more information on the care of this shrub: https://www.gardeningknowhow.com/ornamental/shrubs/rose-of-sharon/rose-of-sharon-bush.htm

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  • Answered by
    MichiganDot on
    November 12, 2017
    A.

    Many gardeners prune rose of sharon in late winter/early spring, before it leafs out. Remove a few of the oldest stems to the ground. This results in more shoots emerging from the shrub base. These young branches bloom more than old wood.

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  • Answered by
    BushDoctor on
    February 18, 2018
    Certified Expert
    A.

    This sounds like it could be a fungal infection. I would put wettable sulfur around the soil zone, and water with a 1 part peroxide to 3 parts water in a gallon around the roots. This will help kill off the infection.

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