beckygardener,
I would think where you are you should get tremendous re-bloom from your plants. So why no re-bloom? The only thing I could think of looking at what you wrote would possibility be depth they are planted. I am assuming you have sandy soil, and you mentioned that you moved the shade plants from the sunny location. So is it possible that the plants in the sunny location have sunken down deeper and they newly planted ones are now not as deep?
I am getting re-bloom right now in zone 8b.