Agfabric dependable containment for bamboo plantings protects valuable hardscapes and neighboring properties from damage. When used as a Bamboo Barrier it prevents the unwanted spread of bamboo and other invasive species. The smooth surface of the Bamboo Barrier acts as a root stop, diverting the rhizome and preventing unchecked growth. How to Install Bamboo Barrier DiagramPreparing For Installation: You will have to dig near the bamboo to find out how deep the existing roots are extending into the ground. In other words, if the bamboo plant's roots extend into the ground 18 in., you should choose a 30 in. barrier. That's because, when you install the barrier, the roots will run downward in an attempt to go around the barrier. Even though the roots will more than likely head upward, there's still a chance they will head further underground. By allowing an extra 12 in. D will provide a greater protection against the roots going under the barrier. Once you have determined the correct height of the barrier, you will need to dig a trench, around the bamboo area, at a depth of 2 in. less than the height of your barrier. In other words, if your barrier is 30 in., the trench should be 28 in. This will allow 2 in. of the material to stick out above the ground, forcing the bamboo roots to grow upward and jump over the barrier.