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Buddleia bushes die off

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Hi there I wonder if anyone can help me?

I'm an avid wildlife gardener and on one boundary of my property I have been growing a wide range of different buddleias for the summer butterflies. However every year a number of very established bushes start wilting and then completely die.

I've no idea what's happening as bushes beside them seem very healthy. It would be fantastic to understand what going on here.

Has anyone had similar experiences or knows what's happening? Thanks Jules

Posts

  • EsspeeEsspee Posts: 274

    Are you planting the shrubs in the same place that previous buddleis have died?

  • EsspeeEsspee Posts: 274

    Sorry Buddleia

  • LynLyn Posts: 23,190

    They need cutting down to the ground almost, then wait and see what the new growth will look like. They will still flower this year and be better for butterflys when they bloom later.

    Gardening on the wild, windy west side of Dartmoor. 

  • Blue OnionBlue Onion Posts: 2,995

    Just cut them back to about six inches from the ground, they'll grow up just fine.  As Lyn said, they flower on this years growth.  

    Utah, USA.
  • riskiqriskiq Posts: 2

    This isn't about cutting them back I'm familiar with cutting back buddleias. Even if you cut these wilting ones back then still die- this is something more 

  • FairygirlFairygirl Posts: 55,117

    Is there something present in the ground? A raft of concrete for instance.  Have you grown anything else there? 

    What about neighbours - could someone be chucking weedkiller over the fence? They're pretty hard to kill. 

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



    I live in west central Scotland - not where that photo is...
  • LiriodendronLiriodendron Posts: 8,328

    Is the soil particularly wet in this area?  Buddleias can get fungal attacks, and it's more likely in waterlogged soil.

    Is the die-back spreading through the established bushes, or only affecting bushes re-planted in the same area?

    Since 2019 I've lived in east Clare, in the west of Ireland.
  • Guernsey Donkey2Guernsey Donkey2 Posts: 6,713

    Or are the buddleias too dry?  They grow very quickly and therefore need plenty of water to keep them sustained through this rapid growth.  The plants do look very spindly, they should be compact when growing after a good prune earlier in the year riskiq.  It is good to attract wildlife into your garden and buddleias are one of the best bushes for this purpose. 

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