The main problem with my "No Dig" garden has been the amount of decomposition that occurs with the alfalfa, hay, blood meal, and bone meal. This is what is left of 14-16 inches of build up. There is roughly only the 4" of compost left.
While in Fort Bragg we visited the Mendocino Coast Botanical Gardens. As you can see from the picture selection I was extremely impressed with the variety of Dahlias. I'm going to incorporate some into my landscape project.