It could also be Helianthus tuberosus, in which case the tubers are edible. They also spread quite a bit, so need to be given quite a bit of room.
How about Thuja Smaragd, Gizmo? Pretty formal and only needs the tops cut off when it has reached the desired height.
This ought give you all the info, Birdy13, good luck with the propogation!
Hi Sertolicell, this link should help, scroll down to see what to do in winter.
http://plantsrescue.com/tag/phyllostachys-aurea/Scroll down for info on planting in containers.
Unfortunately, it's more likely to be this one:
Great, thanks Mel, will definitely try that, wish me luck.
Hi Chelseagirl, it's an Amarylis Belladona, see link below.
They are lovely, Mel M, what were the 2 original colours you crossed? And how did you do it?
No idea what the white one is, but I love it!