I am hoping to grow several plants as small standards, e.g.
My first question is about how long to let the main stem grow before nipping the top for the first time, to encourage branching? Once I nip the top will the height of the main stem remain the same forever, or will it continue growing?
e.g. I have a young dwarf Pomegranate that's currently a single straight 12" stem. I'm tempted to nip the top so it can start branching, but should I? I would like the main stem to eventually reach about 18".