I knew that Hawaiian Snowbush (Breynia disticha) was hardy in Florida zone 9a because they were grown as landscape shrubs when we lived in the Daytona Beach area but I didn't realize they were hardy much north of there.
edited to add: You could leave it as a container plant and move it indoors to a protected location during the winter months.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!