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Preventing root growth/ spread

Hi all, I am about to plant Bamboo ( Phyllostachys  nigra)  I wonder if anyone has an idea what product will  prevent roots spreading out into the flower boarder as I wish to contain it's spread to about one Meter diameter. 

Any ideas please?


  • pansyfacepansyface PEAK DISTRICT DerbyshirePosts: 18,154

    That stiff black plastic strip they sell for damp proof courses in brick walls is good. Just make a shallow trench, set it in, cut to the right length and fill in the soil.

    Apophthegm -  a big word for a small thought.
  • Alan4711Alan4711 LincolnshirePosts: 1,643

    High Steve  you might want to email this chap for info on root  bags often used for Fig root restricting, 

    as you can see it also has the slab way that Monty used ,when you log on there is a box for questions he,s very helpful,his name is Stephen, Good luck Steve 

  • KT53KT53 Posts: 5,017

    Nigra isn't anything like as vigorous as Aurea, but if you want to play safe you could set 9" (225mm) paving slabs on edge, finishing just below ground level.  They will help contain the roots and shoots.

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