I have had them in a container with a Black Diamond crepe myrtle for two years now. They died back last winter and got a much later start than I expected.
Fortunately, I decided to see whether it could be propagated from cuttings and it can! I took four cuttings and they all have roots coming in within a week of floating in water! I'm really stoked about using these as mothers to get more mature plants in other containers as soon as it's safe to set them out next year!