Ice cream has a more of a waxy blue-green stem. Mysore or pisang celylon (improved mysore) have a blush stem and midrib. As the plant matures the undersides of the leaves will have a slight purple coloration.
Hope this link helps:
? Pisang Ceylon or not
If you have the ceiling space I'd grow it in a 25 gallon pot or larger with jungle growth potting mix from Lowes. If you are leaving it potted outside a mix of jungle growth and composted cow manure would be a good choice as well. Once the plant gets established you can generously fertilize with a liquid fertilizer such as scotts or miracle grow.