Thank you all for your recommendations!
I didn't realize that elephant ears did well in the shade. I'm definitely going to try that this year! I think that'll look very striking in the front entrance.
Oops, I meant to say that New GUINEA, not New ZEALAND impatiens did not do very well for me. The regular impatiens did, so I'll try more of them this year. Maybe in the same container as the EE.
I planted Stoplight heucherella this year, but they didn't do very well in the ground. I'm going to try a different variety in containers.
Paul, I'm afraid I don't trust myself to move the containers around on a regular basis!