Here are some of the Adenium (recently re-potted) I have grown from seed over the winter. They have done well, with the larger ones being 5-6" tall.
A number of the larger ones have started sending out several side branches, and were looking like they would be quite nice specimens. However, now that the weather has gotten warm, the main stems have gone into a growth spurt, and the side branches have stagnated.
I have a scalpel I can use to make a nice clean cut, but am a bit nervous about lopping the top off such small plants.
Are they large enough to prune?