We tried your method, and it was a success! I’m attaching some pictures showing different states of the garden. The first picture is shortly after we created the new raised beds in April by first putting down cardboard and paper grocery bags and then adding a layer of compost. The later pictures are from July – September. This was a challenging area to plant because it only gets full sun for a few hours a day. Add to that our short growing season and I think it was quite successful! We have to have tall fences to deter the deer and bears (black and grizzly bears).