ANNUAL Greater Portland Iris Society Beardless Plant Sale! Venue Portland Nursery Stark Street, 5050 SE STARK, Portland, Oregon. September 17-18, Time 9-4. Iris plants to be found at the sale: Siberian, Japanese, Spuria, assorted Species and Species-Crosses. The workhorse of the perennial garden, the Siberian iris, can be found in many colors. The foliage, knee … Continue reading