This is an herb spiral, in which you plant drought hardy plants at the top and water-thirsty plants at the bottom. By adding wood, it mimics hugelkultur, in which buried wood adds nutrients and reserves water. -Grow Food Not Lawns
Picture yourself in a forest where almost everything around you is food. Fruit and nut trees form an open canopy. Food-bearing shrubs fill the gaps. Assorted native wildflowers, wild edibles, herbs, and perennial vegetables thickly cover the ground.
Some really interesting ideas You can never pin too much info on Hugelkulture. I slready have my test bed started. Hopefully I get good results next year. One of the bad things about living so far North, the growing season is never long enough.