Cleome, marigold, pansy, datura, snapdragon, petunia & moss rose to
name a few. A few snapdragons in well protected areas will survive the
winter. I live in IA Zone 5 but we had some -5 to -10 weather this last
winter. In some of the milder winters I have had whole beds of
snapdragons survive.

Marv-Montezuma, IA
http://community.webshots.com/user/vmwood