Root barrier to stop bamboos from spreading; sink this root barrier into the ground to ensure your bamboo does not run

Bamboo root barrier is ideal for keeping your bamboo plant in check without it running all over the garden. The root barrier is made of laminated triple-woven nylon, making it incredibly tough but also very flexible.

We would recommend using this bamboo root barrier when planting any Phyllostachys, Sasa, Pseudosasa or Hibanobambusa bamboo, but it won't be necessary for any of the clump-forming bamboos such as Fargesia or Chusquea.

via bigplantnursery.co.uk