I like all the different kinds of shapes Adeniums take, I don't prune very much at all.
OK, I am posting a photo that I may have posted here before--- This is a three year old plant that was buried in a three gallon pot. You can see the green part of the caudex, it was all that was showing. I had it potted in huge chunks of bark that I got off a very big old tree. There were inch-big air spaces down in the pot. The bark held moisture, and the spaces allowed root formation. There was a layer on top of the bark, of shredded cypress mulch and peat, for the feeder roots. I decided to dump the guy out of the pot (behind the plant in the photo) because the pot was getting deformed.
I repotted in a larger pot, and the caudex is still at the buried level. I will repot in a couple of months into a pretty pot that I have yet to buy, and then I will leave some of the tangle of roots exposed. Whew.
These plants are something else. I saw photos of a HUGE tree-form Adenium that took three men to move into another pot.
OK!