Has been doing well in my 6a gardens for 4 years now. I mulched it well the first two years, thinking it may be too tender, but I have not mulched it much for the last two years and it has done fine, both with and without mulch.
These have been doing well in my 6a garden for two years. Made it through one mild winter and one supposedly harsh winter, with a thin layer of straw, no problems.
Emberglow puts on a great display here and the hummingbirds love it. Just as [plant]76125[/plant] is wrapping up it's bloom, Emberglow takes over. Overwintering just fine without protection since winter 2010/2011, I'd guess this is a hardier plant than advertized. When not in bloom, the stiff sword shaped leaves make a nice statement as well. Cut and dried they last quite a while. One leaf per tuber though or you risk damaging it.
It's mid-June and mine are full of bud spires that will open soon. They will bloom about a month before finishing. They are hummingbird magnets. They also make a nice cut flower that lasts a couple of days indoors.