My sedirea in a pot flowers regularly each year - Actually I have a bit of an opposite result regarding light - I find that they can take a lot more light (esp in the winter) than is expected. The leaves of mine regularly curl towards the light, and I have them 6" away from CFLs. Last winter I had them right up against an unobstructed south-facing bay window where they got a good 4 hours of early morning direct sun! They were a bit happier then I think possibly because of the cooler temps, but I'm not sure! I tried repotting one of them once while in spike and it aborted...not sure if my repotting was faulty, or whether their naturally sulky when responding to repots.
I'd wait w/ the sedirea
enjoy the blooms..they smell great in the mornings. And beautiful kingianum too! I'm still figuring that one out.