Plumeria stock is getting soft
I have a small Plumeria that I have been growing from about a 8 inch stick. It is now about 12 inches and has two 6 inch branches. I had it outdoors for the summer months (it did very well) and have since brought it in for the winter. It has no leaves and now the stock on both branches is starting to shrivel up and get soft. What can or should I do? Thank You.