Thank you WillC very much for the additional tips and advice.
I removed the top soil just enough to cover the root. When can I add the removed soil back to the pot?
Since you explained about re-potting, now I understand why my 10 potted benjamina ficus died around 2019 Jan and Feb. Since they had outgrown small pots, I re-potted them to bigger pots in 2018 Nov and watered about once a week without checking the soil moisture. So, they had the double whammy of move stress and over-watering, causing the root rot.
Can I ask more questions on the following benjamina fincus?
After I noticed that almost all the leaves were fallen during the past winter, I thought the root may have rot and was very careful not to over-water. And now it is coming back to life but only in one branch. Is the current condition solely the result of over-watering during the last autumn to winter season?
How can I make this ficus grow normal upright? Will there be new leaves on other branches or are they dead for good?
When I had 16 benjamina ficus pots, I had propagated them from cuttings of the branches with leaves from the big benjamina ficus outside in my tiny backyard. I put the branches in transparent plastic cups with water, placing the cups in shade area, replacing the water 2 times a week, and the root started to grows from the branches. Is this the best way to have more benjamina ficus trees?
I am thinking these days that benjamina ficus is easier to deal with by under-watering than over-watering. Once it is over-watered and thus have root rot, it is hard to cure or revive.
Thank you very much.