Hello I have several large birds of paradise trees (strelitzia nicolai), seen in the picture below.
Since I live in a a seasonal climate they need to be taken indoors over the winter. Unfortunately they have gotten too big this summer and can no longer fit indoors, so I am looking into options to prune and ideally restart them.
My idea is to cut each tree at the red lines shown in the picture. The hope is that after they are cut, eventually when new leaves emerge from the core they will start off smaller then they are currently. as you can notice in the picture the trees have started to sprout mini offshoots at the base of the core plant, my theory is that cutting the core plant will help stimulate more of these offshoots.
Ideally leading to a bushier/thicker but shorter plant.
If anyone has any experience with trimming these plant or similar tropicals like bananas, please share your experiences.