I’ve had this rubber tree for a little over a year now and it was so beautiful when I first bought it! Then over the winter, the leaves all fell off except maybe two or three. Since then, it’s been repotted and I moved to a new place with much bigger windows, it’s been thriving and continuously growing new leaves! I’m just curious what to do about the bottom half of the stem(?) where all the leaves fell off. Any advice would be great!!