@kevinlovett86 ,
from 1980 or so.
5 mm silica based gravel
if needed ------- for extra water retention, but within the structure - 5 mm crushed red eartheware
building block.
Plus aged compost ------------- left just moist in a barrel, weed seeds germinate and die.
By volume [ little spade ] no more than 30 %
Holds 20 times it's weight in water.
Checked on 30 year old trees - soil - no decay on the inorganics and no fat roots.
Simple soil mix, but it works well.
Good Day
Anthony
* Aha so that was gunk in your last image of a discovered Duranta.
Don't make me send a Shaolin monk to stick prayer papers on your
forehead
For penance.
For ficus -------- 90 % inorganic - 5 mm gravel
Note also grown to that trunk thickness in that pot.
Around 5 to 6 years.
Can supply more how to if you need, just ask.
Just for fun ------ graceful. All grow and clip = Ling Nan