Only thing about rooting multiple cuttings in a single pot is that trying to untangle tender white roots seems disastrous to me. I'll stick with one cutting per pot until I gain more confidence.
You can easily separate multiple cuttings in a single pot by using a "water bath". It will easily separate and bare root the cuttings with little or no damage.
Pete, I do the water bath with tomato and pepper seedlings all the time. I was thinking the fat white fig roots would just snap off the cutting like when I tried to remove them from the spg moss. Maybe after the roots turn into brown dirt roots they could withstand the waterbath. This may take what 6 mos in the pot before trying to separate?
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