Here are a few Resources:

Clumping Bamboo – http://www.wikihow.com/Plant-a-Clumping-Bamboo
Leyland Cypress and fast growing trees – https://www.fast-growing-trees.com/Oregon.htm

Make a Day of it! Some local nurseries & nearby restaurants:

Tony’s Nursery http://www.tonysgarden.com
Then maybe lunch or dinner at the Z Haus Brewing? http://www.zoiglhaus.com/contact/

Birds and Bees Nursery http://www.birdsandbeespdx.com
Stop in for a bite and cold beverage http://www.gladstonestreetpub.com

Cornell Farms https://www.cornellfarms.com
Have breakfast or lunch across the road at the Oregon College of Art and Craft Café. https://ocac.edu/cafe