Mid-Atlantic Gardening: What's Happening in your Garden Today June 2011, 1 by Gitagal

Gitagal wrote:
My small-blooming, Estonian Clematis--"Piilu" (Little Duckling) in bloom.
The blooms are just over 2" in size.

It really put on a lot of growth from just a small new plant last Spring...
It is growing in a lg. pot by my patio roof post facing towards the house.
It said in the catalog that it can take part shade.....

Google "Estonian Clematis" and you will see the amazing variety they have.
Most of them are also more cold-hardy given their country of origin.
Just above mine--Latvia.