Knotweed?

Posts

• fidgetbones Posts: 17,618

  July 2018

  I cant see the main stem, but I think not. The leaves don't seem to be heart shaped.
  

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• markawitham Posts: 16

  July 2018

  pansyface said:

  Possibly.
  
  If you look at this website,
  
  https://www.phlorum.com/services/japanese-knotweed/domestic-knotweed-removal/knotweed-identification/
  
  Go down to the section titled “in summer” and click on the photo titled “mature summer growth”.Compare your photo with that one.
  
  

  Thanks, does look similar. I guess the leaves don't seem to be that heart shaped but hard to tell at a distance.  

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• treehugger80 Posts: 1,923

  July 2018

  i've worked with knotweed for many years... that is Japanese knotweed,
  

  
  

  I hope it isn't in your garden, it needs reporting to your local council as it is classed as a 'notifiable noxious weed' along with giant hogweed. its the land owners responsibility to remove it safely so that it doesn't spread!

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• ju1i3 Posts: 189

  July 2018 edited July 2018

  I don't think your photos are close-up enough to say for sure. There's a pattern on the stems and the leaves are a distinctive shape. I can't see that on your photos.
  

  
  

  My local council does not require reporting of Japanese knotweed.
  

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• Valley Gardener Posts: 2,851

  July 2018

  If it's not.....it's very very similar. I would get something sorted to be on the safe side.

  The whole truth is an instrument that can only be played by an expert.

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• punkdoc Posts: 15,039

  July 2018

  I agree with treehugger, it looks like JKW. to me.

  How can you lie there and think of England
  When you don't even know who's in the team
  
  S.Yorkshire/Derbyshire border

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• markawitham Posts: 16

  July 2018

  Thanks for the thoughts. I live on a new build development where JKW was removed before construction last year. There is a management plan in place which is meant to finish this summer so will flag it to them!
  
  Your views have given me confidence to make an issue of it though with the developer so thank you! 

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• Dovefromabove Posts: 88,147

  July 2018 edited July 2018

  Yes ... that looks like an established JKW plant to me.  So many people only recognise the "young shoots" form ... an established shrub in it's second year or more, looks like that.  
  
  I would definitely 'make an issue' of it ... in the nicest possible way 

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

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• markawitham Posts: 16

  July 2018

  For anyone interested I've been given a copy of the management plan mentioned above which seems to be fairly comprehensive - Phew. 
  
  Herbicidal treatment program to the knotweed along the boundary and neighbouring grounds.

  • June 2017 The first herbicide treatment of Japanese knotweed 
  • August 2017 Second herbicide treatment of all areas of Japanese knotweed, site walkover. 
  • September 2017
    Third herbicide treatment of all areas of Japanese knotweed, site walkover.
    October 2017
    Further herbicide treatment of all areas of Japanese knotweed, site walkover
    February 2018
    Clearance of all dead Japanese knotweed stems from the site in sealed bags.
    July 2018
    Assessment visit, treatment if required.
    August 2018
    Assessment visit, treatment if required.
    Late September 2018
    Assessment visit, treatment if required.
    December 2018
  • Removal of any remaining dead Japanese knotweed stems from the site in sealed bags.
    Two years monitoring through 2019 and 2020
    Issue of 10 year Insurance backed warranty by GPI insurance

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