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Roses issue

Hello,
I have a few rose plants in my garden, however for the past few years there aren’t many roses blooming as before there used to be lots of roses. The plant looks unhealthy and the leaves have this sort of black spots. Would someone be able to advise what is causing this and what I can do to treat it?

Posts

  • Busy-LizzieBusy-Lizzie Posts: 24,043
    It's a disease called Black Spot, common with roses. Roses that are well fed and well watered are more resistant to it. There are anti fungus sprays that you can buy in garden centres.

    It has been very hot and dry this year. Have you watered your roses? A whole watering can at a time so that it penetrates. Do you feed them? March then after flowering.
    Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
  • Mine suffer from this, I have to jump on it with a black spot spray asap.
    After a treatment they come back well.
  • NollieNollie Posts: 7,529
    At this time of year it’s common. It’s also typical of simple leaf senescence - basically just foliage past it’s best and on the way to being shed and looks more like that to me. I wouldn’t bother spraying at this time of year, I don’t think it would help and you would be using chemicals unnecessarily.
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • What you can do is to remove the worst leaves .., also gather up any on the ground and bag and bin them … that way there’ll be fewer of the fungus spores around your rose bush next year. 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





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