DO I NEED TO PUT ANYTHING UNDER MY NEW BARK?
United Kingdom 
because have just put it down on soil in my garden
17 Jun, 2009
Answers
The blackbirds might fling it around a bit, too! The worms eventually draw it all down into the soil.
17 Jun, 2009
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Well you don't have to - some people put a weed suppressing membrane down first and then put the bark on top of that, but it's not essential.
17 Jun, 2009