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- Root Barrier. Dig out a trench that defines the area you wish your bamboo to grow in, to a depth that allows the barrier membrane to protrude 6/7cm above ground level.
When installing the membrane your aim should be to slant it, with the top edge angled away from the bamboo being planted, so that the membrane slopes outwards.
When rhizomes reach the barrier they will then be directed upwards naturally.
When joining two ends of the membrane together allow a minimum overlap of 0.5m.At overlaps seal both top and cut ends with Gaffer tape to ensure no earth gets into the join. After planting your bamboo make sure the membrane is bedded in well.
Once a year in Autumn inspect and cut off any rhizomes that may have attempted to escape over the barrier.