Sorry about that redundant post. Nothing showed up for a day or two,
so I reposted the question.

I potted up the begonias this morning. I've put them in a north
window, assuming they'd appreciate a lot of indirect light.

One branch snapped off while potting them, so I stuck it in a
container of water hoping that it will root. Or would I be better off
adding some rooting hormone and putting it in a pot of soil?