Enough sun?

What kind of fertilizer? Maybe too high in nitrogen causing leaf growth at the expense of bloom?

I have a several of those, they make babies pretty easily. And I like that they're tough.

I think it needs a dormant phase, and then it will/may bloom after. I do not put mine into dormancy very often. The last time was years ago. (Mine are all in pots, and here it doesn't get that cold in winter.) But I do think I got it to bloom. I think I just stopped watering it for a while, put it in shade, maybe even turned on its side?, then started watering again.

I'd do some research though, just to be sure. Or try it with an offset? I'm surprised there haven't been more responses, maybe people here are busy.

Oh, you know who would know for sure? Someone at the Huntington Library garden. They had a bunch of those for sale last week. Somebody there knows how to deal with them.

Are they going through a rest period at all?

I am trying a drying period this time. I have int the past tried digging them up and drying them, digging them up and putting into smaller pots and continuously watering them treating as a houseplant. Will try more fertilizer next. Any other suggestions?