But your mixture will still get exhausted in pots, and you'll still
need to feed in a year or so. I generally use the stuff out of
growbags -- sometimes even used ones.
thanks for your response. but i remember being told some time ago that
grow bags and shop compost are ok for a short time; but do not contain the
'essential minerals' that are found in ordinary garden soil. Which are
apparently necessary for long term use in a pot.
By essential minerals my understanding is that it means other things than
are found in ordinary plant feed.