There are many good native , non - invasive alien plant for the nicety garden in Oregon . The level of wet and hardiness varies from one side of the state to the other . Western Oregon is mild , moist and forested . Eastern and Central Oregon have spicy summertime and stale , windier winters . select shadowiness plants with these climatic conditions in mind . Thicker - leave plant will hold more abuse than those with fragile foliage .
Native Shade-Loving Shrubs
The forest in Oregon are filled with shade - kind shrub . One of the best is the evergreen huckleberry ( Vaccinium ovatum ) . It has urn - forge flowers , sweet edible black berry and durable dark green leaves . Evergreen huckleberry will reach 6 feet tall over time , but is a boring grower . Salal ( Gaultheria salal ) can be study a tall ground cover , or a low bush . The medium - sized , glossy - green leaves are attractive all year long . The snowy , urn - shaped flowers are follow by black mealy , but eatable fruit . The rhododendron is a staple shade works in Oregon . It does well in deep or partial tone , but will formulate more flowers grant filtered sunlight . The aboriginal species ( Rhododendron macrophyllum ) has low-cal purplish - to - pinkish blooms , and long , medium - greenish folio . Tall Oregon grape ( Mahonia aquifolium ) will maturate in some of the toughest weather condition conditions . It will also tolerate sun and wind , but looks best in shade . There are two other aboriginal lower growing Oregon grapevine , ' Nervosa ' and ' Repens . '
Exotic Shade-Loving Shrubs
Sweet box ( Sarcococca confusa ) is a low - uprise evergreen plant bush for full shade . It ’s small , elongated , glossy leaves have little , white , fragrant flowers , and smutty or red berries . Sarcococca will grow in all Oregon zones . There are several varieties of gardenia ( Gardenia jasminoides ) hardy to Western Oregon . They must be protect from wind and harsh conditions , but will do well in USDA zone 8 . supererogatory hardy varieties are ' Kleims Hardy , ' ' First Love , ' ' August Beauty ' and ' Chuck Hayes . ' A late addition , plainly named ' Hardy Gardenia , ' promises to beat the others in toughness and fragrance . Gardenias are capable to disease and weather condition patterns , but the alien fragrance get to them worth pampering . Another fragrant bush for shade is wintertime Daphne ( Daphne odora ) . This shrub also benefit from a windbreak created by a building or structure . Daphne requires double-dyed drainage or it ’s roots will molder . Hydrangeas do very well in the shadiness of bombastic tree , which provide just enough filtered light for bloom development .
Native Shade-Loving Perennials
Oregon is home to many easy - to - spring up timber wildflower . Wake robin ( wake-robin ovatum ) , and inside - out bloom ( Vancouveria hexandra ) peak in early fountain . Native bleed centre ( Dicentra formosa ) will blossom over a long period if kept in the shade . The smallest dogwood is the bunchberry ( Cornus canadensis ) . It becomes a wanton ground - cover with distinctive ashen dogwood flowers . A good tall perennial is sour Solomon ’s seal ( Smilacina racemosa ) . It develops foamy white flower clusters and red cosmetic berries . For moist tint , plant maidenhair fern ( Adiantum pedatum ) or cervid fern ( Blechnum spicant ) .
Exotic Shade-Loving Perennials
Hellebores do well in moist or dry shadiness underneath trees . Common bleeding warmness ( Dicentra spectabilis ) is a welcome spate in spring . For verdure , summate Japanese tassel fern ( Polystichum polyblepharum ) or soft shield fern ( Polystichum setiferum ) . Hosta make dependable companion flora for other shade perennial . Mix in spring bulb such as snow drop-off , fritillaria and crocus . For bold foliage , and belated summer flowers , try bear ’s rear of tube ( Acanthus mollis ) or bell efflorescence ( Campanula ) . For large area underneath trees , grow lily of the valley ( Convallaria majalis ) .
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