Maybe I read it wrong? When I was trying to figure out how to trim back my lucky bamboo without killing it, I just thought I would stick the cut stem in the water and it would root, and that would be pretty much it. I can’t tell if the cut stem has started rooting, but it is still alive (although a few of the leaves have died). To my surprise a few days ago, I found that the place on my original stalk that had been cut has started sprouting out the side (like the base part of the plant). Hmmm… I wonder if I need to do anything else with it.
Update: The cutting has roots. It worked!