On Mon, 9 Jan 2006 19:16:38 +0000, undergroundbob
wrote:


Hi, maybe not exactly the info you're looking for but the RHS magazine
'The Garden' had a really interesting feature in it recently about a
study of plants experimentally grown on various diferent piles of
'waste material', ie broken bricks, cement etc. Lots of things will
thrive apparently! It was one of the later issues of last year, maybe
September or October. Perhaps you might be able to chase this up and
work out a way to not use any top soil at all!

Cheers, Bob


Thanks Bob - i'll look into getting back issues...

Steve