We're building a house in the woods. I honestly haven't noticed any earthworms, but I haven't gone looking for them yet. I have tons of wood debry, and rather than burning it all away, I wanted to work on making it charcoal to turn into biochar. Once the house is finished and all the infrastructure is in place, then we'll be looking at doing some gardens. Once my garden beds had enough biochar, I was going to start spreading it in the woods. For the woods, was hoping that I didn't need to work it into the clay, or bring in extra organics.