Definitely not what I'm doing with it! Mine is in a window box outside a patio door, and largely gets ignored. It blooms in fits and starts and after I wrote the above 'advice' I went and looked at it.
I'd be embarassed to show you a picture of it right now. It definitely needs repotting and some fertilizer.
But it's got blooms, and I never feed it anything but balanced fert! They're really very resilient, and they like the humidity and high rainfall in our summers so I get away with ignoring it. See, I live in what is essentially a jungle in the summertime, and then give my plants TLC in the cooler weather.