Well of course it is cool. The concept alone is way cool, nevermind that it increases growing space w/o increasing linear ground feet, nearly waters itself, can provide a bit of privacy if tall enough, and you can incorporate mushroom harvests into the build! I am chomping at the proverbial bit to begin my hugel builds!! As soon as I settle in @ the new property. I suppose I could do my first in the hole that will soon have been the tiny pond in my yard of perhaps 15' x 20' or so!! (yes, it really is that tiny, and the largest "yard" in the mobile home park!) As I prepare for the move, I will be dismantling the pond and have to fill it in anyway! It's only 4'x6', but hey, I almost bet I could get it to 4 or more feet tall before planting it!! Or am I dreaming?
“Peace is not absence of conflict, it is the ability to handle conflict by peaceful means.” —Ronald Reagan