I've always wanted to try the sandstone rubble technique for growing
natives which has seemed so successful for Don Burke.
http://www.burkesbackyard.com.au/fac...rubble_40.html

Basic idea is to mound sandstone rubble to 1m add 10 cm compost with 10
cm mulch. Plant natives directly into sandstone and stand back.
So to do this I need to source cheap sandstone rubble. Apparently you
can get it cheap from quarries as it isn't very useful for any thing
else.
I'm in Sydney north west. Anyone had a go at this? Where do you get the
sandstone?

regards Nick.