Hello. According to www.alohatropicals.com these can be grown in containers. They are beautiful.

Leona

I have flowered it in a 3 gallon pot, I'm sure a bigger pot will work better. I live in a climate where it grow well, I just haven't planted it out yet. Note you want to get the "watermelon" strain since it is more colorful-- the ones from aloha tropicals are a lighter color with less intense pink coloration and they end up looking a little pale and washed out.