My mom had these HUGE ones - we're talking 7 and 8' tall - that she always grew. Dug them up each fall, stored them wrapped in newspaper in the basement & planted them again in the spring. And the foliage was a deep burgundy with bright bright red flowers.

By the time I got a place, she'd let them all die & I've never found any like them. And honestly I wouldn't have a good place to put them due to the wind here in central KY.