On Mon, 20 Oct 2008 19:35:30 +0100, "catkin"
wrote:


I think that you'd need to leave the plastic in place for at least a year
for this to work. If you remove the plastic in time to plant anything in
spring then there will still be time for weed seeds to germinate and for
perennials like bind weed to grow.

I see. I was jumping to a wrong assumption that the black plastic only
needs to be in place for about a month.

JD