Starstryke

Not an expert but my thinking is to look at the light source and or the amount of water you are giving the plants. I give all of my bananas roughly 4 cups of water at the end of each week. They tend to like it but I have taken steps to prevent over watering by adding water absorbing crystals to a couple of places around each pot. I am using a grow light setup that I use to start seeds but you might want to check on the bulb you are using. Not sure if you need a full spectrum bulb or something to that effect but maybe some of the more knowledgeable people on here could help with that. Important note with this. none of my plants actually went dormant with this setup even though they were in an unheated garage.