Hedges: fighting cedar hedge roots

Discussion in 'Gymnosperms (incl. Conifers)' started by sylwia, Apr 12, 2014.

  1. sylwia

    sylwia New Member

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    vancouver island
    We have a very large (15ft tall) cedar hedge. It great privacy, but the roots are invading flower beds and stealing moisture. The roots are shallow running, mostly in the first 7 inches of soil. I dug a trench a foot deep, until I hit some gravel. If I pour concrete into it, will that stop the shallow running suckers, or will they find their way into the bed? Is there an effective way to create a barrier against an established cedar hedge?

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