I was hoping someone would answer, but since no one has, I can tell you that the Chrysler Imperial will do just fine. Just keep it well watered and fed and every year or two take it out, bare-root it and repot in fresh potting mix. As you know, nurseries grow everything in containers and they do just fine.

Thank you! Any suggestions for size of pot?

I would say get as big as you can handle. Sorry I have not replied sooner ....

I bought one today from a very reputable nursery. It was in a 7 gal fiber pot. I was told I could leave it in that size pot until approx. August. I am in zone 8a. I asked about growing it in a 10 gal pot and was told that it should be fine because the nursery often leaves their plants a "very long time" in large pots; however, it is important to replant it WITH IT STILL IN THE FIBER POT. Removing it from the pot can damage the roots. Cut off a little of the fiber to make the soil all the same level. She also said to be certain to water it every day and feed according to the box directions.