Nice article and photos! Here in Oregon's Willamette Valley, it is so wet in the winter and so dry in the summer -- hugelkultur seems like a great approach for some parts of my garden. The big attraction for me is the water-holding capacity of that rotten wood. I have a lot of rotten wood to use -- and it is definitely saturated now! I've got a low-lying spot in mind and will be building it, as soon as we get a single day without rain, rain, rain, lol!