12 inch deep trench for controlling rhizome spread

parismountainoldtimeOctober 30, 2009

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?

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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.

    Bookmark   November 1, 2009 at 7:10AM
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fredgpops(z9 N/ CA)

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

    Bookmark   November 2, 2009 at 11:41AM
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kudzu9(Zone 8a - PNW)

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.

    Bookmark   November 3, 2009 at 2:09PM
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