Region: Mountain West
We love Alpine Clematis. It is hardy and agressive (almost to a fault) in our snowy and variable mountain climate. We often plant three species together: Clematis alpina for early spring blooms, Clematis viticella for summer blooms and Clematis tahgutica for late summer blooms and showy seed heads in fall. I wish I could upload a picture for you.
Click on a thumbnail to see a full sized image