Hi there

I am looking after a large Estate which has a lot of Borders filled with
Shrubs. In March I dug and weeded each border thoroughly. Two of the borders
just fill up with weeks very quickly and can be described as "high
maintenance".

The weeds are tall ones, short ones, spreadable ones, prickly ones and of
course stinging nettles.

One of the borders measures 50metres by 20 metres. There are no flowers only
shrubs.

How can I convert these borders into "low maintenance"?

Thanks in anticipation....