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Heat stressed Hydrangea

    Date Posted: Thu, Jun 27 - 2:13 pm

    Question

  • We have a large hydrangea that has always been healthy and we pruned in late winter. We returned from vacation recently and it now looks like the attached picture (brown from bottom and inside). Any ideas on how to prevent this from spreading or it worsening? Thanks!
  • Answer

  • This is most likely heat stress. We have had some very hot days and basically no rain. Hydrangeas are typically the first plant in the garden to show heat stress. The recommendation is to keep it watered, and just ride it out to the end of the season. It won't look so good, but it also should not die. If you have some shady areas of the garden, this plant can also be easily propagated using cuttings and rooting hormone. It roots easily and then you can plant the new ones in an area with a little more shade.