|Several people told me that pieris
|According to trials done at Oregon State University, Pieris japonica 'Flaming Silver' performs best in moist soil and does not require as acidic a soil as do other Pieris plants. It grows better when fertilized regularly when grown in areas of high rainfall. The trials did not reveal a tendency toward brown leaf tips. If your soil drains well, you water deeply once each week during the growing season and you feed every 3-4 weeks, 'Flaming Silver' should perform well in your Seattle garden.
Best wishes with your landscape!