I have several different cannas in pots my favorites are.........
I love Stuttgart but it likes shade. Many people are not happy with this canna because the white burns easy if it gets more sun than it likes. But it is a beautiful Canna. grows 6' tall
Canna Pretoria (Bengal Tiger) is a pretty canna and works good in a pot 4' tall
Canna "Pink Sunburst" beautiful variegated leaves of pink, reds lime green and a pretty pink flower 4' tall
I have purchased some from Florida Hill
http://www.floridahillnursery....
