Marilyn, I am so jealous you have Tagawa's nearby. We don't have nurseries like that: green-one-stop-shops. Enjoy your outing out there.
Never heard of Timberline. Will look it up...
Here's a slapped together raised bed that my Hubby put together to have me plant some stuff for him to look at every time he has to go in and out of the studio to work for the house bacon.
This is my project to plant before going out to OR...I rather do a container...