that no one wanted after the holidays and they started to drop leaves and get ugly. They would languish all winter, some dropping all their leaves. But in the spring, they would put out new growth. I did keep them in the house for a couple of years, and they did survive well and looked good. But they never bloomed again. So now, I just wait till spring and I plant them out in the garden. They have beautiful full leaves and are a nice compliment plant. If I were so inclined, I could have dug them up and brought them back in the house for the winter, but I didn't bother. I just know that they do very well outside through the summer, although they do not turn red.
I have never seen seeds, but I have never looked. I have a feeling that the ones you buy for the holidays would not reproduce well. I did buy some seeds once, but they never germinated. Cuttings would be an easier and more successful method of reproducing them, at least from what I have seen.
Editted to add: I just hate to see a plant die----and that is the reason I would round them all up. For some reason, end of season frost kills don't bother me as much.