Can you prune this cactus? ID also pls.
This is a cactus that is in my office. It has grown to over 6' tall and really needs to be smaller. Can anyone tell me, what is the proper way to prune this monster? and perhaps identify the cactus for me.
I imagine that it could be pruned at the joints, but apparantly it is a cactus from the late father of my boss and he does not want me experimenting on it.
Any advise would be greatly appreciated.