Banana Trees are one of our all time favorite large plants. They make a beautiful patio plant in the summer, but will grow indoors as well.
Banana Trees like very bright indirect light or full sun. They also love A LOT of water. Give it a thorough watering whenever the top soil feels dry. You may need to water it every day in the spring and summer, especially if it is in full sun.
Our Banana Trees are in a 10" pot and about 4 ft tall.