Check out yellow leaves on rhododendrons and azaleas.
OSU Extension publications show how to grow several kinds of berries, fruit trees, roses and native plants in Central Oregon.
Wild lilac is drought tolerant and needs no fertilizer
There are probably few plants that are more strongly identified with this area or are held in greater affection than the madrone tree.
Left to its own devices, wisteria will swallow the structure it grows on
If it flowers now, hold off pruning until it's done blooming
Butterfly bush, or Buddleia, can be a very aggressive non-native plant that, in certain situations, can overtake native vegetation. Take care to cut blossoms off in the fall.