Hello... Hope someone out there can give me some suggestions. I live in San Francisco, California and moved to a new place with a bare backyard 4 months ago. I would like to plant something that can be used as a natural screen that stop my rear yard neighbors from looking into my bedroom window. The problems I have are: 1. There is no direct access to the rear yard and I can only go down from the fire escape. But I still want the place to look great. 2. Because of 1, I am looking for a plant that not only grow fast but also must be evergreen with minimum leaves fall in the winter as cleaning may be a problem. 3. I live in the foggy part of San Francisco. Any suggestions will help. Thank you again.