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Top Questions About Phlox

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Questions About Phlox

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  • Answered by
    Downtoearthdigs on
    July 12, 2015
    A.

    Is the black soot-like? This could be sooty mold fungus, which is brought about through insect pests. Treating the plants with Neem oil should help with both the sooty mold and any pests that are contributing to the issue. Even if it's another type of fungal problem, Neem oil should still be effective. Here is more information: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm

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  • Answered by
    Jomarks52@gmail.com on
    July 16, 2015
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  • Answered by
    Downtoearthdigs on
    July 20, 2015
    A.

    Yes, treat the insects with Neem OIl. This is a good choice as it acts as both an insecticide and fungicide.

    The yellowing leaf patter can indicate an iron deficiency in the soil.
    Here is a link with more information.

    https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm

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  • Answered by
    Downtoearthdigs on
    August 12, 2015
    A.

    Treat the plants for slugs.
    Water sparingly into the fall and there is certainly a chance the roots will survive.

    Phlox is generally quite hardy.

    https://www.gardeningknowhow.com/ornamental/flowers/phlox/growing-garden-phlox.htm

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  • Answered by
    Downtoearthdigs on
    August 29, 2015
    A.

    You can go ahead and cut them back anytime after flowering has stopped. Deadheading them may even promote additional flowering. Here is more information: https://www.gardeningknowhow.com/ornamental/flowers/fgen/deadheading-flowers.htm

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  • Answered by
    Downtoearthdigs on
    September 5, 2015
    A.

    Yes, you can cut the spent flower stems to the ground at any time, but you should generally wait until spring for pruning back the remainder of the plant, just prior to new growth, as this normally triggers the regrowth process. If it is ginning to look unsightly, however, it will not hurt to give them a light trim.

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