This is a follow up to my question here, hopefully I can get some insight. About a month ago I cut my basjoo as instructed and brought it inside for the winter. But since that time there is about seven inches of new growth. I am concerned that this plant is growing back now, instead of the spring. Please help. It breaks my heart to saw this beautiful plant, and all of the pups in the pot died when it did that. What should I do?
I grow a lot of these sort of plants that are 'subtropical' and bring them in. I think you need to either:
Provide a relatively warm place with lots of light
This will allow it to grow properly during this period.
Provide a cool to what-you-may-consider cold (though not freezing or below) area where light is not as much of a concern (though it won't matter much)
This allows the plant to go dormant, and when warmth comes in the Spring, it will shoot out and grow nicely.
You have it in what looks like a warm (I see baseboard heaters) and dark (I see no large window (south or west facing) nearby. This can mean it will send out shoots, that are unable to photosynthesize (make it's food) and it will be drained of resources all winter. It may not make it.
Leave it alone. I wouldn't have cut it back. The banana draws those nutrients back into itself as the leaves fade away.