Hop in here Purple.
Yes I am talking about that Purple Shield. I love that plant and the nurseries do not sell it every year. I kept one alive all winter in the house in the basement laundry room, no window light with a glass of water once a month. It was ugly but it was beautiful a few weeks after going outside the next Spring.
Purple said just take a cutting and put it in a glass of water in a week or two you will have roots and a new plant.
I have to go back and look at the other ones to comment. I have heard people take cutting of the coleus and keep them in a glass of water all winter. My mother use to do that when I was a kid so I know that works.