Be careful with that MOM plant. Even as far north as I am, you can end up with a solid covering of babies over a pretty wide area around where your pot is, and in the pot. But they are totally easy to scuffle up with the back side of a seed rake or other flat tool to remove. Or you can let them get tall enough to grab bunches of stems by the handful. The roots come up very easily. I keep a few of the heartiest ones for winter blooms. Just snip the stems & stick them in whatever pot has space and will be by a window. The babies can survive a freeze but the older stems can't.
I don't put these in combo pots except for cut flower stems for that reason. They pull out easily, but I don't need more in that way.