I didn't actually dig it in a day - I think it took me best part of a week. On the concrete middle area, you can see just some of the couch grass roots, and stones, that came out of the soil. One of the bins is full of couch grass roots, the other is half-full of soil, just to get it out of the way. Lovely, black, clay-loam soil, and full of worms! Yum!