I like the idea of upping the diameter/length of the wood. I am a little worried that it won't rot down fast enough and I'll have too much un-rotted wood down there in the spring. I was planning on doing many stakings in a 1 meter square, like 50 sticks, so the total wood in the ground would be pretty high.
William James wrote:Thanks everyone for the replies.
Good idea about the pigion pea. Seems to be similar to Fava beans which we do grow and they do provide some shade. Confused about Moringa. Is that a tropical tree? Don't know if it will work in my cool Mediterranean climate.