Julia is correct, Edelweiss doesn't have nursery visits anymore.
But Wild Ginger Farm does
http://wildgingerfarm.com/ (At the nursery, call ahead for hours, or at plant sales. I think they stopped doing the online sales).
Secret Garden Growers has some very interesting hard to find plants.
http://secretgardengrowers.com...
Al's Garden Center in Woodburn, OR (No online sales)
I'll have to post some more, have to leave in a few minutes.
And this is the plant sale of the year to go to:
http://www.clackamascountymast...