It is about 2 years now since we have been growing this small banana plant on a container - got this from a good friend of us living here in St. Louis. I think this is Hawaiian/tropical banana tree and so far it has survived couple of winters - since it is container grown it has been real easy to move inside house during cold winder months. But lately I have been noticing that it has overgrown for its container and there is even a baby banana plant - definitely it needs transplanting (to a bigger pot).
After moving the plant from the saucer, I noticed that the roots of banana plant has started creeping out through the drain holes and definitely a sign that the plant needs transplanting.
Typically we don’t like growing plants in plastic containers/pots but for tropical plants that needs to be moved inside the house during cold winter months we do prefer plastic pots as these don’t weigh much and could be easily cut for transplanting as well.
Before cutting the pot I spent few minutes in pulling out the roots from the drain holes - I did manage to pull out the roots off the drain holes without causing much damage 
Next step was to cut the pot and pull out the plant - though I could have pulled out the plant off the container, I didn’t want to mess with the roots 
Lots of roots and good sign that the plant is healthy and sure needs a bigger home
Next step was to prepare the soil - I mixed in garden soil, peat (retains moisture in the soil and loosens up the soil), 1 teaspoon of Epsom salt (natural mineral - real cheap @Walgreens and can be used as fertilizer when preparing soil), and blood meal (improves nitrogen content of the soil).
Before packing the pot with the soil, I added pebble stones so that water could drain easily - this is something that could always be done on container gardening. Adding pebbles/rocks to the bottom of pot, helps drain water easily there by preventing root rot.
Elsewhere on the web I read that banana plant could be propagated by carefully cutting off the baby plants (aka suckers/pups) using a sharp spade from its mother rhizome. So I carefully cut off the baby plant from its mother and got them moved to 2 separate pots.
Now I have 2 banana plants
Here is a picture of banana plants after transplanting.
