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What's wrong with my hydrangea

I noticed tonight that my hydrangea looks quite sick. Planted in a border that get full sun. It was flowering and green all summer, but August onwards it turned. Can anyone help?

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  • FairygirlFairygirl west central ScotlandPosts: 47,195
    Full sun isn't ideal for them. Dappled shade is best.  :)
    In full sun they get crispy and dry out. Spring and autumn sun is ok, but full on summer sun is very difficult for them to deal with. 
    It's right up against a wall too, which is always drier. 
    It's a place where beautiful isn't enough of a word....


  • ElferElfer Posts: 329
    My understanding is that they have a shallow root system so wall would also prevent roots branching out on one side limiting hydration which becomes even more important in full sun.
  • FairygirlFairygirl west central ScotlandPosts: 47,195
    The quality of the soil is also important, and I'm afraid that doesn't look like a good site for it at all @squelchyno1
    Most of them become very large shrubs, and there isn't enough room there for it do well for the reasons mentioned. Easy enough to move it to a better location though, especially at this time of year.  :)

    It's a place where beautiful isn't enough of a word....


  • They also need a huge amount of water,mine are suffering in a north face garden,in semi shade,as we've had no rain for weeks
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