I grow mine in just 6-inch containers. My understanding was it likes to be root bound. I have some of them hanging with some hang-a-pots hooks or sometimes just by another bigger container, due to lack of space issues I have opted to go vertical, if I can:
inside a bigger container:
this one is enjoying hanging, found the container and hanging wire at Big Lots one time:
In plastic 6-inch pots, using hang-a-pots to latch upright on the post:
