Pruning Black Bamboo
A few years back, my mother bought some black bamboo for me as a gift from a large mail order place. It started out as a few culms that weren't much larger than pencil lead. It's done pretty well and is quite vigorous. Occasionally, I'll have a shoot come up almost horizontal and then curve upwards. I also get very tiny shoots from time to time.
I'd like to prune back some of the non-vertical shoots and maybe some (not all) of the smaller shoots so I can see more of the larger culms. I don't want to prune too much or prune in a way that will stunt any other growth. Are there any rules of thumb on what you can/can't should/shouldn't prune? Would pruning black bamboo be any different than any other bamboo?