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Possible Japanese Knotweed?

david 679david 679 Posts: 3
in Plants
Hi there,

I'm not a gardener by any stretch of the imagination but I do enjoy gardens. However, after having bark chip laid over my entire rear garden in preparation for a Spring make-over I came across these tuber weeds growing through.

Are they Japanese Knotweed? If so, then I strongly suspect that they were 'imported' from the bark chips ... great!

Any help is much appreciated :)



Posts

  • punkdocpunkdoc Posts: 15,039
    NO, not knotweed, probably Arum italicum.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • Fire LilyFire Lily Posts: 296
    Definitely not. :) Congratulations to not having the worst weed ever! ;) It looks more like some kind of Persicaria lapathifolia. But i'm not sure. 
  • Guernsey Donkey2Guernsey Donkey2 Posts: 6,713
    Difficult to get rid of but not impossible.  It does spread - we have them in our garden and over the years have found it popping up in various parts of the garden.
  • david 679david 679 Posts: 3
    edited April 2018
    Pheeeew!!! Many thanks for confirming! The plant suddenly sprung up from nowhere; the white, tuber-like roots were quite deep and difficult to remove - I suspected the worst.

    It does appear to have the shape of the Arum italicum leaf, but less so Persicaria lapathifolia. Either way, I'm relieved.

    I just posted as yours came in Guernsey Donkey2 - can you also confirm it isn't JK?

    Best course of action to remove if it is unwanted?
  • Fire LilyFire Lily Posts: 296
    Just cover it, like with some plastic with weights on it or a pool for a couple of years. 
  • fidgetbonesfidgetbones Posts: 17,618
    Not JKW. I agree with punkdoc, it looks like Arum italicum. 
  • david 679david 679 Posts: 3
    Many thanks for all your help.
  • Guernsey Donkey2Guernsey Donkey2 Posts: 6,713
    No, it certainly isn't JKW - we wouldn't tolerate it in our garden but the Arum is acceptable but best kept under control if you can.
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