I have some of these and they grow very tall.About 6 or 8 feet tall.The flowers bloom before the leaves come out.If you just bought yours do not look for blooms this year.I dug mine up and thinned them and they did not bloom this year.Mine is planted under a oak tree.Jessie

Thanks for your response, Jessie. I was thinking of putting them in full sun to provide a screen, but it sounds like they could use some shade. I finally got the bulbs in and am making my final decisions as to where they should be placed.

Does anyone have experience with these in full sun? Can they handle it?

I have a stand of them in all out Louisiana full sun, and they are the best bloomers and get HUGE. I don't know if anyone else is growing them this way but they have done fine in full sun for me.
Scott