Because almost half of my garden plot was virtually impossible to till and plant, I tilled a 15 X 40 foot patch of land just south of my fenced garden. The soil is perfect. I planted radishes, okra, turnips, onions and sunflowers and it all seems to be doing fine. I added not one cup of organic matter to the soil.
If I could just move my fence 30 feet to the south, I would have a good garden. Close, but no cigar . . . or bush beans for that matter.