Coneflower Plants
Q.

About my coneflower…

Zone Barrie, ON, Canada | Anonymous added on August 16, 2016 | Answered

We have a pretty big problem with aphids and powdery mildew on two of our three coneflowers. Since it's mid-August already, should we cut our losses, cut the coneflowers down now, and use the solutions you provided in your articles to prevent it from happening again next year - or - will the early pruning be detrimental to the long term health of the plants? Thanks so much!!

    A.
    A.Answers to this queston: Add Answer
    Downtoearthdigs
    Certified GKH Gardening Expert
    Answered on August 17, 2016

    It is likely the plants will not have any issues with being cut down now. Dispose of the plants so that the insects and Powdery Mildew does not spread.
    I myself just did the same cut back in my own garden.

    https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

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