Arlyn, glad to hear Rita's health is improving.
Nikki, many years ago I used to try fancy florist mums in the garden. I would find pots of them thrown away in the cemetery and feel sorry for them and bring them home. Most survived the winter just fine, but the problem was they were very late blooming- like November. They typically got frozen just as the buds were trying to open. Day length triggers bloom and some require really short days to set buds.