I have recently bought a banana tree and had a few questions about its care. First off, I live in Missouri, so the weather is permitting me from leaving the tree outside, I have it potted indoors, near a glass door to maximize sunlight. Although it is near the door, it does not seem to be doing too well, the leaves are developing random brown spots appearing almost see through. Also, the leaves were growing almost one new one a week a few months ago, and that has slowed to about one every 3 weeks it seems. I was just wondering if anybody had any ideas and also could help me out on the watering pattern. Also, old leaves towards the bottom are dying, should I let them fall off or take them off? I NEED ANY HELP!!! Please respond or email me if you have any ideas.

Thanks