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12 inch deep trench for controlling rhizome spread

Posted by parismountainoldtime (My Page) on
Fri, Oct 30, 09 at 21:42

I would be interested in comments from those using the trench method for control of running bamboo. I just dug mine and I wonder how effective they are, will rhizomes really cross where you can see and cut them off?


Follow-Up Postings:

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RE: 12 inch deep trench for controlling rhizome spread

It works, but the trench needs to be renewed each year. I find mounding the center a couple of feet also helps. Growing bamboo near trees also lessens the spreading. Shade tolerance varies and you want to find a happy medium.


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RE: 12 inch deep trench for controlling rhizome spread

I've never used the technique but since many bamboo species have roots that go down 2 to 2 1/2 ft, wonder if a 1 ft trench works on all baboo? Rgds


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RE: 12 inch deep trench for controlling rhizome spread

  • Posted by kudzu9 Zone 8b, WA (My Page) on
    Tue, Nov 3, 09 at 14:09

I agree with fredgpops. I think that a 2' trench or barrier is the minimum. A 1' deep trench will probably catch the majority of the rhizomes, but not all, and you want a margin of safety.


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