Andy Atkinson wrote:

I recently dug up my lawn and put gravel down with pots over the top. I used
weed-proof fabric but it seems to have doen little good with things
sprouting through it.

Can anyone recommend something to kill the weeds underneath? Needs to be
fairly powerful.

What sort of weeds are punching through the weed proof fabric? I haven't
seen any that could get through the stuff I put down in my mother in
laws garden. Even the toughest thistles could only get out after finding
a seam or a planting hole.

I can believe bamboo might puncture it, but not much else.

Regards,
Martin Brown