Some sedum bloom only in certain conditions.
It also depends on the amount of sun you get.
Sedum need a certain amount of bright sun every day in order to trigger blooming.
Aeonium,
If you have grow lights, you can force Sedum to flower. I have a post about it from a while back in this forum.
I find that a lot of the round-flat leaved (current) sedum can be reluctant to bloom unless they are in the ideal condition to do so.
In some cases, the ideal condition for blooming isn't the ideal condition for growing.
