DnD I was giving that some thought for texture and look , ideas ,, Then the effort ,, takes some considering ,, Besides that, there is the final enjoyment of about 3 to 4 times the number of plants in the space allowed , it is tempting to say the least ,
Hugelkulture , article page home , this site , I use to do a similar , I would dig a trench ,, throw large plant limbs and clean paper and then food waste until it got full ,, Grew huge worms and good tomatoes ,