Help a newbie, please! I inherited a beautiful indoor yucca that has grown to about six feet tall. Most of its lower leaves have turned brown and have been peeled off to keep it looking nice. I have not exposed the root to see if it has two "branches" or they are independent of each other. My problem is how to keep this plant from falling over all the time. I've re-potted it twice and it just keeps growing taller! Can I cut it and replant the stalks? It has never flowered, either. Help!