Muck is dense in nutrients. Some farmers around here will pay $12 a ton for it to enrich their soil. But put it on sparingly. It is "hot" enough to burn about any plant for a couple years if put on too heavily. I learned that in my garden. The nutrients will leach out and it a few years it just turns into plain dirt. I had a huge area of it piled up after my pond cleanout. Dark black in color and thought I had a lifetime supply of fertilizer but now when I scoop into it with the tractor bucket it is just clay color.