Now that I can see the pictures on the computer I agree with Rose of Sharon. Both of the above mentioned shrubs are "Hibiscus" (Hibiscus Laevis) and (Hibiscus syriacus), and they look very similar.
Rose of Sharon is an invasive species from Asia. The other is a native plant. I've read that they have come up with some varieties of ROS which are infertile and not invasive.