Is bark a good way to prevent weeds?

Question:

Answers:
Yes, very much so but will work even better if u put landscape fabric underneath before barking with at least 3inches of bark.

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Mulch on top of 7 - 9 layers of newspaper prevents weeds. They can still come up through mulch (bark).

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Yes, for some. The thing is to not letting sunshine to go through it for weeds to have a chance to sprout out. You need a thick layer for that, perhaps, about 2 inches at least I would say.

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