Question
Hello,
I would like to have some advise concerning,
consistency of a good ground mix for the cultivation
of peaches(variety unknown)about 200 containers
placed on a flat concrete roof,covered with 10cm
of gravel and protected from heavy winds by surrounding trees.
furthermore,growing raspberries on terasses made ag-
ainst an existing tallud....?  

Answer
Britt, your question brought up more questions. Like, how large are the trees? How much heat and cold will they endur? What kind of watering system? What kind of container are they grown in? How large is the container?
With these questions answered, I can give you a better soil formula.

bakerplanter