Can anyone tell me, as I can't seem to find out, how long you need to stockpile shredded tree bits before you can use them. Our neighbour has had a horse chesnut cut down and shredded, and I have been given permission to take what I like. I am going to use some for paths between the veggie beds, and know I cannot mix them into beds and borders yet, as you only do that with composted bark, as new shreddings would take nitrogen out of the soil. But when does non-composted shreddings become composted, to be able to use it in the garden?
