My Aeonium cuttings are coming along nicely since last Autumn. I read that you need to pinch out the top leaves, to encourage them to branch out. Is this correct, or will they naturally branch out if I just leave them? I think I understand what needs to be done to pinch out the top leaves, to encourage branching, but cannot find any photos of this on the Internet. Does anyone have any photos showing how to do this correctly?