What a lot of fuss.......all you do is to build a turf wall with the turf
face down, this can be used for many things or just to let the grass die
off. you will get a bit of growth from the outside half inch but if you let
it alone for about 8 weeks you can then cut the wall back with a spade about
an inch and put the trimmings in your compost heap (Buried) after a year you
will gave first class loam for potting compost.
This was the way that loam was produced for many many years and it grew
great plants.
No need fro chemicals or the hard work of digging a trench or anything.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk