How Much Woodbark To Eliminate Weeds?

[chrissa1]

Just got my daughter to de-weed my small front garden. How many bags of wood bark would be needed to give the correct depth to stop weeds etc growing back?
If someone can give me a square meterage per bag that the stuff will cover, that would be great. Thanks.

My own broadband will be back on by Friday. Can't wait.

[woofgang]

If you don't put a weed impermeable membrane underneath, you might as well not bother and weed seeds will still germinate in the bark mulch...

[Old_Geezer]

And the woodbark scatters in the wind over your path and lawn :-(
Looks good if you top up regularly though.

[Gizmonster]

As woofgang says, make sure you use a membrane, otherwise the weeds will just grow back through the bark.
I'd recommend doubling it up as well, as I've seen weeds penetrate through these membranes.
If I remember correctly, I used something called "weed guard" and I actually trebled it up on my borders .... it's cheap enough to do this and it lets water seep through.
I've just done a quick search and it's available from Wilkinson's for £3.50 for a 8m x 1.5m roll:
http://www.wilko.com/garden-accessories/wilko-get-gardening-weed-guard-8m-x-15m/invt/0149760

Or £16 for a heavy duty 25m x 1m roll:
http://www.wilko.com/garden-accessories/wilko-heavy-duty-weed-guard-black-25mx1m/invt/0224962

[Chipchopper]

I use a lot of woodchip to mulch around shubs, I still get a few weeds but they pullup much more easily.
Top it up when it looks like it needs it.

[chrissa1]

Mine are not so much weeds, but what look like reeds, with broad leaves. Their roots are deep and have to be dug out with a fork.

Thanks,Gizmonster for the links.