I've been trapped in Albany OR for two growing seasons (I really live in Ningbo, China) converting a 20+ year old grass backyard into an organic garden on its way to a food forest.
The soil here is river alluvial rock, sand and clay. So, as an old school permie, My mind goes directly to the old saying, "Dirt First!" My first season was centered around mulching, composting, vermiculture and pH balancing...and growing soil-enriching vegetables.
After a miserable 2nd growing season where forest fire ash laden skies prevented decent sunlight? from reaching the ground, I'm going into winter with the intention of punching through the clay layer situated 2-6" below ground level. This 6-12" thick layer was handled previously with a post-hole digger and sweat.
But, thanks to Permies.com, I discovered Daikon radishes! This winter instead of dreading Spring where I wonder if I'll get any real root growth, I'm sitting inside where it's warm, drinking tea and watching the Daikon sprouts growing throughout the garden, slowly punching holes through the clay layer!
I've always been a believer in the principle of let nature takes its course and follow in that path. So, I'm letting the Daikon grow, punch holes, then green mulch in place, grow worms and leave me time to plan keyhole garden plots instead of digging through the clay next spring. Yahoo!
Thank you, Permies.com!