Someone and I found earlier this summer that they like to be disturbed. Meaning in the spring move it. I don't know if you can see earlier pics of mine, but when I moved it the patch literally tripled in size.
After the season ends and or right before its planting season(if you bring indoors to protect) stir the soil up to see how many you have if a lot take a few and spread the love in other pots or a pot of its own for a healthy flourish and to help make more. Stir in a little fresh soil dont water unless super dry just wait till spring and then fertilize and water well and let them do their thing..did this even come out sound right?? In my head it did lol