Brugmansia This small tree sports large hanging flowers that open for a week at a time with the full moon. Though hardy only to zone Brugmansia 'Cypress Gardens' is ideal for containers and can be overwintered inside.
How to Grow Angel Trumpet Plants - (poisonous)
Angel's Trumpets - Southern Living, Great advice on where to plant and how to share. No info, however, on how poisonous these are. So, be aware.