I have several questions.
Background have my first banana in flower, think it is a double mahoi.
I am in zone 8b so our lows are starting to hit 50 degrees but the day is in the 70's and sometimes 80's. I have pictures of the banana and my treatment attempts to keep it warm and still growing. It seems to be working as the pups are putting out new leaves still.
The bananas seem small about 3 inches. I have flowers still coming but I think they may have switched over to male, but I can't tell for sure. Do male flowers still have a green stub on the end?
Let me know what you think about the flowers, the fruit the winter protection any suggestions.

About the size of a finger

are these male flowers?

Is this one beginning to plump?
You can see the tree here with the flower and their christmas light heating system. on the left you can see a pup leaf unfurling.
