I live just 40 miles north of Spokane. I don't do much with spring bulbs (if you want spring flowering bulbs, you had to plant them last fall), but I grow lots of flowers from seed. I mostly start them in a greenhouse. I think we're just a bit colder here than you, but I don't plant anything outdoors until mid to late May (and that's only recently--previously I had to wait till the first week of June, but things seem to have warmed up a bit the last couple of years). There is a very nice rosarium near you: Northland Rosarium if you're interested in roses (they don't open till mid-April tho) and they also carry Clematis.
http://northlandrosarium.com/i... You also have access to Ritter's, on the north end of Spokane, which is a fun place to look around and get ideas.
http://www.4ritter.com/home Seems like there's another place nearby, but I can't recall the name just now.
Welcome to the area, and to ATP!