I decided that barrier isn't really a correct term. What you want to do is deflect the rhizome to go over instead of through. It was difficult working with the 60 mil plastic but we got installed. 130ft in 4 hours :) You gotta love friends with tractors.

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It is angled more than it looks.

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I unfortunately had to cut in two places so I will be ordering some metal straps. It doesn't look like I got a final pic. Will do that this evening.

No all I need to do is get some bamboo..... WOOOOHOO