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Hollyhock Rust?

Hollyhock Rust?

Question from Gaynor Bramall
864 1
My recently planted Hollyhocks are growing well, about 3ft high. Have just discovered bronze, light coppery flecks. I suspect rust. Looking closer is it magnesium deficiency? Can you please advise. Help very much appreciated. Thanks,
Gaynor.
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Posted: Tuesday 21st of September 2010 04:10 PM

  • Re: Hollyhock Rust?

    Kathy N
    Hi, Gaynor,
    Looks like rust to me. Best thing to do is cut it back this autumn and destroy all the leaves - don't compost them because this can help spread the disease. In spring, you can apply a fungicide on new leaves to prevent rust from coming back.
    Kathy C
    Replied: Tuesday 21st of September 2010 05:59 PM

    • Re: Re: Hollyhock Rust?

      Gaynor Bramall
      Thanks for the info Kathy C.
      Replied: Tuesday 21st of September 2010 08:07 PM
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