I have my vft's planted in a large container, let's say about 24 inches deep. Some of the plants are divided several times and I would like to separate them. If they were in small pots it would be as easy as removing the entire soil mass and washing it away...etc. But in this case I am going to have to dig them up and I'm concerned about not going deep enough and damaging the taproot.
Any idea on how deep I should go? Essentially I an going the insert a trowel in a circle a few inches from the center and try and remove the whole thing like a plug. I'm thinking 6-8 inches should be enough to minimize root damage but wanted some thoughts.
I've seen some pics on this board from members who seem to have plants in large containers, what do you do when you need to "pull" a plant to repot/divide?