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Japanese Knotweed

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  • punkdocpunkdoc Posts: 15,039
    edited January 2023
    I don't think composting JKW. is recommended.

    Being kind to strangers is never a waste of time, maybe try it sometime.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • bédébédé Posts: 3,095
    edited January 2023
    Surely this forum is not a target for spammers.  They could be doing something far more exciting - like shutting down  Royal Mail.

    How do you recognise spam?

    punkdoc said:
    I don't think composting JKW. is recommended.



    I was thinking "composting separately".  Should have been clearer.
     location: Surrey Hills, England, ex-woodland acidic sand.
    "Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
  • FairygirlFairygirl Posts: 55,117
    edited January 2023
    Spam is usually quite obvious, especially if there's a link in the post, but old threads dredged up out of the blue with dubious spelling, or a cut and paste job, are quite easy to spot.
    Usually, if we reply, we tag the offender's name using the '@' and their name, which makes it really obvious, but sometimes, we can't be bothered. My reply to @pansyface made it clear that we were addressing a spammer, as I actually used the word 'spammer'.

    Repeat spammers are also easy to spot [especially on a Friday]  if you use the forum regularly. 
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • momogibbsmomogibbs Posts: 1
    edited January 2023
    I’m original poster ( was using husbands account when I originally posted)  so thought I’d do an update I managed to buy some super strong round up in uk & got a friend to bring it overI have treated bit by the fence by poking wire coat hanger down hollow stems then pouring it straight down inside stem on the bit I know is definitely JKW will have to wait to spring & then I will treat it again the  other patch I was unsure of is now under a driveway😬 have to wait to see what pops out & something I thought was possible JKW is hopefully Valerian  I spoke to the neighbour she looked at me as though I was crazy & just plucked the bit growing out of her lawn so interesting different attitude here saw some for sale on equivalent of gumtree for a euro a plant & it’s also growing happily deliberately in public gardens ! 
  • FairygirlFairygirl Posts: 55,117
    That was good of you to return with your update @momogibbs  :)
    It's one of those things- spammers resurrecting threads and then some nonsense happening. 
    It [JKW] can certainly be eradicated by the method you've tried [pouring down stems] but it can be an ongoing problem for quite a while.
    Hope you can get it eradicated though. At least if the other bit is Valerian, it's not really a problem  :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • I know it's invasive, but I embrace the good in Japanese Knotweed.  There has been some work here using it in medications to treat Lyme disease.  It grew on my former property and my mules would do anything possible to get to it, they absolutely loved it.  There's evidence it helps build their (animals...equines in particular) immunity and the plant is loaded with antioxidants.  Anywhere it grew that it hadn't been treated chemically I would harvest it for them.  It's said the shoots in spring can be harvested and eaten like asparagus, but I've never tried that.  The amount of pollinators that are attracted to the flowers is incredible.
    That said, my mother refers to it as Whiskey Plant.  Because the only way to get rid of it is to drink whiskey until you can't see it anymore. ;)
    New England, USA
    Metacomet soil with hints of Woodbridge and Pillsbury
  • That's interesting @CrankyYankee Here in the UK . JNW is a reportable invasive plant. Or at least it used to be - don't know if the legal requirements have altered recently. 
    Properties for sale which have this in their garden have to make it clear to any prospective purchaser and usually results in either a no sale or proof that it has been eradicated before the property changes hands.
  • bédébédé Posts: 3,095
    Grey squirrels were Ok whilst they stayed in N American.  Over here though, they are major problem.
     location: Surrey Hills, England, ex-woodland acidic sand.
    "Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
  • @philippasmith2 it's considered highly invasive here, as well. 

    bédé said:
    Grey squirrels were Ok whilst they stayed in N American.  Over here though, they are major problem.

    Eat them!  They make a tasty stew.  ;)
    New England, USA
    Metacomet soil with hints of Woodbridge and Pillsbury
  • GardenerSuzeGardenerSuze Posts: 5,692
    I think I am correct in saying you cannot move the soil it is growing in either. There are huge fines involved for anyone removing it from a site without the proper permissions.
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
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