Found your site via google.
Just a word from someone in the USA about the subject.

I am in the process of adding a pond with EPDM liner in an area with bamboo - for the full on Japanese effect. I dug the hole over a year ago (lost job long story) then finally bought the liner two weeks ago. Lined the hole with sand and heavy landscape fabric. Placed the liner, filled it then let it set for a week to settle. Saturday morning all was well. Tuesday evening found a 4 inch long bamboo spike through the liner.

For a year I had not seen any bamboo roots. 3 days later I find the spike. Remember that it had gone through an inch of sand and 2 layers of landscape fabric.

I am truly humbled.