Do Barriers Work?
I live in Maryland - zone 7 and am about to plant 50 yellow groove to create a living fence. I plan to have trenches dug on both sides of my living fence and to place plastic 60 mil barrier down 2 feet with a flap over the side of the top of the trench. I have been told this will prevent the bamboo from becoming invasive and going into my neighbors' yards. Is this true? Will the barriers prevent unwanted invasion? Does anyone recommend the 80 mil 3 foot barrier?