Last year I attempted to overwinter impatiens. I moved them indoors near a window, but soon all their leaves dropped off leaving bare stems. I was disappointed so I gave up. This year, I have a healthy New Guinea impatien and some regular impatien wallerianas that I want to overwinter. I can't stand losing them. How do you overwinter them? Is leaf loss normal?
Please help, winter is coming and I don't want the frost to kill them, nor do I want to take them home and watch them die.