Moroccan Pineapple Broom is a splendid, hardy NON-INVASIVE tree that we adore for its silver foliage and spicily scented cones of brilliant yellow flowers. Fast growing tree which may also be maintained as a shrub. In our climate with more rain than its native range it usually achieves tree like proportions. To 16′ tall by 10′ wide most often with one to three trunks. Best in poor to average soil with as little irrigation as possible once established. You must treat this plant with a bit of benign neglect. Overly enriched soil and too much supplemental irrigation leads to a rank growing and usually unstable plant that can go over easily in a wet gale. The flower fragrance is definitely pineapple with somewhat salty notes. Blooms appear May-July and are born on wood from the previous year. Prune-if needed AFTER flowering has ended. Full sun is ideal. Wonderful small tree for rough sites- compacted awful droughty soils. Almost always deciduous in our winters and surprisingly hardy taking temperatures just below 0ºF with no ill effects. Moderate deer resistance. Absorbs the blasting heat of south facing walls. Wonderful small tree. Beautiful espalier subject- see pruning above.
Bird of Paradise shrub is an incredibly showy flowering plant that is surprisingly adaptable to the Willamette Valley. Native to Argentina/ Uruguay the exotic large yellow flowers in whorls each with 3″ strings of blood red stamens protruding. Each flower lasts but a day but a truss carries many individual flowers. Fine divided foliage is light gray green and a great foil for the exotic flowers. Full hot, all day sun in a hot site. Ideally, it should be located against a south facing wall- this heat lover is slow to break dormancy in spring and doesn’t normally begin flowering until mid-summer and continuing until cool weather. To 8′ x 8′ drought adapted but water speeds growth. Deciduous. Spectacular.
Western Redbud is a wonderful showy spring blooming tree that gets by on no summer water. Native to California also Utah, Arizona this is primarily a large shrub in the wild. We have found in our climate with a longer rainy season it forms a small tree. In April this entire tree comes to life smothered in tiny but profuse magenta pink pea flowers. They line all the stems and even appear on the trunk. After three weeks of glory the handsome new leaves appear. Round and blue green they have a slight rubbery texture. To 14′-18′ tall and forming a spreading crown. Fall color is orange to yellow but not reliable. Large purple colored seed pods are showy and persist after the leaves have gone. Moderately fast growing (2′-3′) per year when happy. Full sun and well drained soil of average fertility. Water through the first summer to establish then no summer water in subsequent years. Thrives in our climate.
Chinese Indigo is one of our favorite perennials/subshrubs. Arising from the ground in late spring the arching stems to 3′ support 6″ long pendant pale rose pink flowers for months and months. No intervention needed from the gardener. In time it suckers to form 4′ wide patches. Regular water to establish in average to rich, well drained soil. Full sun. Freezes completely to the ground in winter- cut back defunct stems from the previous year in early spring. When it does emerge its a very quick trip to up and blooming. Incredibly drought tolerant when established but light consistent watering seems to encourage new flowers- as it grows it blooms so you want to keep it growing. Incredibly elegant but tough plant that asks for so little but gives so much.
Our locally native silver leaved lupine. A wildflower that beckons gardeners with incredible metallic silver foliage and spires of blue and white flowers from late spring into summer. It has some exacting requirements. Its best to know where you find it in the wild. Steep, steep cliffs and steep open road cuts. What do they have in common? Excellent drainage and little summer water. Spreading almost shrubby evergreen plant to 2′- 3′ wide on average. The very pretty fragrant flowers rise up to about 3′. It seems to resent a lot of competition from other plants- give it room, its own space and again, perfect drainage. Highly deer resistant also not as attractive to rabbits. Oregon native plant.