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Wood chip depth

For a large domestic garden, would around 10cm depth of wood chip be about right for bed that contain shrubs and a few trees, gets no traffic through it. Probably about 100m2 total border size ? Should this depth help suppress the weeds without a membrane down as well ?

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  • PRO

    I have never done it that deep. Usually about 5cm. Bark maybe a bit deeper because it is larger.

  • Yeah don't know what I was thinking, 5cm sounds better.
  • Yup 50-75mm, it won't completely suppress weed growth without a membrane, but the weeds are easily pulled out.

  • I put on as much as I can within reason. The more I add the less weeding maintenance I seem to have. And I use bark over wood chip because a) it looks much better and b) when I do go into the bed to weed off I don't get any splinters. Regards-Helen

  • PRO

    Fresh wood chip can also starve plants of nitrogen - for an explanation, see here: http://www.landscapejuice.com/2006/08/wood_cip_mulch.html

  • Thanks for the info.

    Was aware about the fresh wood chip and nitrogen issue, in the big bed it's just a tree and a couple of shrubs. No perennials, annuals, etc.

    As it's for a quote just working out how much I would need.
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