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Hellebores - black spot?

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  • fidgetbonesfidgetbones Posts: 17,618

    That what I thought. The only one I had infected, I dug up and took back. They said all I had to do was cut off the leaves,  but new leaves were coming through infected. I was offered a replacement, but as all the ones on display were showing signs, I had my money back. All of my Ashwood one's are fine.

  • chickychicky Posts: 10,410

    Cries image

    thanks for the help though - looks like I have some digging up to do image

  • fidgetbonesfidgetbones Posts: 17,618

    It is spread by a specific aphid. Do you think it came with it, or  are there other hellebores in neighbouring gardens that may have it?

    Last edited: 18 May 2016 12:50:49

  • fidgetbonesfidgetbones Posts: 17,618

    RHS believe it is transmitted by hellebore aphid

    https://www.rhs.org.uk/advice/profile?PID=534

    Whilst it is not certain, I would not buy any plants from a collection where some show signs. aphids may transmit  it to what look like healthy plants in the vicinity. Once signs are showing, it is too late.

  • chickychicky Posts: 10,410

    We don't really have neighbours, so I can't blame them.  Most of my plants have been grown from plugs - about 4-5 years old now, and have never shown signs before.  One or two more recent were Harvington Hybrids from a Wyevale - they looked healthy when bought, but perhaps were harbouring something.

    i might drop a couple of leaves into Wisley's plant pathologists for them to have a look too.

  • what do you think ? Death ? 
  • GardenerSuzeGardenerSuze Posts: 5,691
    edited 3 February
    @frill-sipper0i86107 No I don't it isn't following the veins. More likely black spot. Remove the old leaves quickly with clean secateurs then clean again.

    The first is H Orientalis remove  old scruffyleaves Dec/Jan. The second is one from the Rodney Davey Group with marbled leaves which should only be removed throughout the year if they are old or diseased. This is because they are grown for their leaves as well as flowers. They also like more sun than the first I have found.
    @fidgetbones mentions be careful when buying. I agree if there is just on plant looking 'off' leave it where it is.
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
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