Hi,
When friends have X mas trees left over cut with thinning in mind
from the local forests, they bring the trees to me. They are freed of
as much decoration as possible, the limbs removed and used for making
raised beds. The main truck is dried, cut in pieces or shredded
depending on width. If it is nice and straight will use it as a pole
in a project after drying.
PatM
I don't practice bio-char as have found using oat straw or like in my
environment works well.