Posted: 20/03/2016 at 16:42
I have the ubiquitous left over builder's rubble just as hosta mentions, with concrete overspills and buried treasure.
I have been improving my soil for as long as I can recall, 10yrs I guess. I always dig a bigger planting hole and never skimp on adding compost, it helps but I'll never be able to grow bog plants, guems are about my limit, but I don't water much either except geums, due to very think layers of mulch
on the up side, I can dig it whenever I want, it's never hard work and what weeds do grow, are easy to pull out