Cumbria,
United Kingdom 
what do i put down under chippings to stop weeds growing than you
21 Jul, 2010
Answers
....sometimes also known as landscape fabric. It's water-permeable and widely available at garden centres, DIY stores etc.,
21 Jul, 2010
Makes the few weeds that do grow much easier to pull out, too. On the other hand, there are a few perennial weeds, such as sedge, that it doesn't stop.
21 Jul, 2010
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A weed barrier membrane. Though this will not stop weed seeds growing in the gravel itself.
21 Jul, 2010