Gail Austin's garden is going to be open Saturday May 26th. If you are in the Portland area, I highly recommend visiting. It is beyond spectacular and she has hundreds of mature Clematis all over, used in many different ways.

I visited three times last year when she was still growing and selling and learned a ton. She is no longer selling Clematis but her garden is well worth a visit to see who grows well here and how big mature Clems really get.

Here is a link that might be useful: Gail Austin Garden