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Thread: Why won't my hydrangeas bloom?

  1. #1
    New Users
    Join Date
    May 2010
    Kansas City area

    Default Why won't my hydrangeas bloom?

    I've tried pruning at different times and it hasn't seemed to make a difference. It's been 3 years since I've had any decent blooms on my hydrangeas. Suggestions?

    P.S. I think one is called a Nikko blue and I have a couple of Endless Summers - even though they don't bloom endlessly for me! I don't know about the rest.

  2. #2


    Don't prune hydrangeas.

    Most hydrangeas bloom on last year's wood, so if it dies during the winter (because it was cold) or if you prune it off, it will not bloom.

    Endless summer will bloom on both this years and last years wood, but if you prune it before it blooms, it won't bloom either.

    Sometimes they often take until fall to bloom depending on climate, in Kansas city it shouldn't take so long, but maybe you're in a cold microclimate.

    I have some hydrangeas that NEVER bloom (including Nikko blue) because they're not that cold hardy here in Michigan, but my Endless Summers are reliable bloomers for me.

    The only pruning I would do is on dead wood, but Hydrangeas are slow starters so wait until mid june and if there are any stems or ends that seem dead, prune those dead bits. Otherwise, don't prune.

    Then, to help it survive during the winter if it still doesn't bloom, build a wire cage around it with chicken fence, and fill with leaves or other loose fill material, and wrap with burlap. I don't think you need to do all that where you live, but some people have to do that so maybe you do too.

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