I have wanted an edible garden for years and decided to do something about it yesterday. I live with family (I'm one of those perpetual students!) and also like the idea of having a wide variety of healthy, non-GM, excellent quality foods which are almost free. We recently got a retaining wall done, and in the infinite wisdom of a certain nameless family member (not me), the "soil" removed from the retaining wall area was spread across the back yard to even it out a bit.
Sadly, the "soil" was actually clay, and a good portion of the back yard, including my proposed garden area, is solid, aweful clay. It actually bends my spade when I attempt to dig into it. I did spray a whole bottle of some clay breaker stuff on it to attempt to soften it up, but it has done nothing. Even 30 minutes of soaking with tank water only gets the water about a millimetre into the clay. I might have to hire a rotary hoe for a few hours, rip up the clay and hope there's some half OK soil underneath.
Watered the clay breaker futher into the clay, still with only a millimetre's penetration. :-(