Rose with blackened canes

Discussion in 'HortForum' started by Hapless Gardener, May 1, 2020.

  1. Hapless Gardener

    Hapless Gardener New Member

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    Hello Everyone,

    Just re-joined UBC-BC.

    I'm in Ottawa and just removed the styrofoam cones that I place on my roses. Usually a success to over-winter here. This year a few of the roses I planted last Spring/Summer have black canes. Not sooty, rigid. There are some that are showing green on the lower part of the cane(s). Fungus? Black Fungus? Dead canes?

    Advice on what to do with the ones that a predominantly black would be appreciated.

    Thanks,
    HP
     
  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Prune just above the new shoots
     
  3. Hapless Gardener

    Hapless Gardener New Member

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    Thanks!

    I've not had this happened before. Any suggestions why it happened?
     

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