A few months ago, I purchased 3 fig trees - Hardy Chicago, VdB, and LSU Purple that I will be growing in containers. They came in quart size pots and are roughly 1.5 feet tall. I have decided to grow them in the gritty mix and have just located the ingredients. I have thought about leaving the pine bark out of the mix so that it is easier to re-use. If I do this, is there anything that might go wrong? Would I just mix the turface and granite 1:1?
Is it un-wise to re-use the inorganic portion of the gritty mix (e.g. do salts accumulate)?