Frillylily is right. What I have are rose of Sharon shrubs, hibiscus syriacus. The ones I have are Blue Bird for the blue flower and Helene for the white with pink center flower. You can look those varieties up, Becky. I have pics of a few seedlings but don't know where they are at the moment. I will post them when I find them.
Frillylily, I love your double blue flower!