I just noticed something last week related to this issue.
A narrow strip of my driveway is made up of stone dust (medium or fine crushed stone). I had placed some pots on it and the roots, fairly good amount of it, had penetrated the stone dust area. I found that it was easy to work with a shovel to extract the roots and pots from this medium of stone dust.
I am just thinking that adding good amount (?) of stone dust to the soil will make the soil less compact-able and easy to pull out the pots and cut the roots that had gone out to graze. My question here is if the stone dust will be detrimental as nutrient source for the fig plants or if it will be helpful in some (?) way.
Thanks George. I was thinking to limit th edepth to about 4" in th efuture and cover any hole(s) above this level with tape to avoid loss of moisture..