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Will bamboo damage the retaining wall

I have planted 2 bamboo plants a year ago along a retaining wall and decided to install the root barrier in a U shape around it - that means from the 3 sides of the plant but no along the retaining wall. The wall is 1.7 m high - that means the neighbor's floor is 1.7 meter higher than mine.

I thought it's unlikely that the rhyzomes will penetrate that 1.7 meter of soil, but now I'm starting to get second thoughts.

It it possible that the bamboo will spread under the upper neighbor's plot and pop up at his floor?

Is it also likely that the roots will go under the retaining wall and circle the root barrier to the right neighbor's property (the one with the cactus)?



  • KT53KT53 Posts: 8,724
    Install a complete barrier.  A partial one is no use as the runners will find a way round it.
  • Lizzie27Lizzie27 Posts: 11,965
    I agree with that. By floor, do you mean inside his property or outside in his garden.?
    North East Somerset - Clay soil over limestone
  • alex440alex440 Posts: 2
    I mean upwards where the surface of his yard is... at the level where the red blocks end and the gray ones begin. His whole plot is higher than mine by 1.7 meter and is supported by this retaining wall.

    But well, it seems I don't have much choice... It will likely find its way to the cactus, and then I won't be able to get it from under the retaining wall...

    Uh, I don't look forward digging all this trench once again...
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