Let's see your propagated Begonias, or Begs you want to propagate.
This cutting was put in the ground about 2 months ago. Now it's blooming and there's a new stem coming up from the roots (or on the stem below the soil.)
These were propagated last summer, potted together for winter, and put back in ground about 2 mos ago. (And some cuttings have been taken since then.)