Yerba de Selva or whipple vine, a wonderful small scale evergreen native ground cover. Related to Hydrangeas but this trailer is actually very droughtadapted.e In late spring clouds of small white flowers have the same perfume. Scrambling plant to about 8″ tall and 2′ wide. Full sun to considerable shade. From Portland south this is a common understory component of the herb field. It grew happily in our back 40 where I grew up. There it made pretty scrambling patches between Vancouveria, snow berry and hairy honeysuckle. Often you would see our native columbine ( Aquilegia formosa) as an associate. Its very drought adapted when established but it improves with a few soaks over summer- never perpetually wet and never hot and wet. Otherwise an easy native that should be grown a lot more. Just the fragrance of the foliage endears it to me. For use as a small scale ground cover plant on 10″ centers. It will also gracefully trail over rockeries and walls. Butterflies adore the flowers. Competes well with invasives. Some deer resistance. It may be cut back in early spring to refresh. Once native in the Portland city limits. This is a great native understory for Arctostaphylos, which is frequently seen in the wild. Oregon native plant.
Plant Type: Herbaceous perennial
Perennials are the organic heart of the garden. They return year after year and represent the most sustainable type of gardening. We offer varieties that are difficult to find, that are extraordinary in performance. Evergreen perennials make up a large component in our climate where snow is limited and landscapes are green. They maintain a continuity through the darkest days of the year. Many of our perennials are drought adapted when established and combine well with drought adapted shrubs. We are constantly expanding our offering of native perennials- a category sorely lacking in our gardens.
Native perennials have specific requirements
Just because a plant is native does not automatically mean that it is easy to grow in a garden. In fact, adaptation to summer drought means that you are in greater danger of overwatering than under watering. Many native perennials are slow to finish to sale size. Adelina, Wyethia, are two examples of highly sought native perennials. Turns out it takes about 3 years for them to bulk up to a size that we feel confident will survive when sold and planted out. Conversely, there are many native plants that are easy to grow in container culture but they have a rough transition and low transplant survival rate- most often they are adapted to specific edaphic conditions (soil conditions) and those must be replicated in the garden as close as possible.
Extra care for natives, protection from invasive plants
Finally, the biggest threat to native perennials is being swamped by invasive non-native grasses and weeds. You can’t just randomly plant them out and expect them to adapt immediately. Treat them as well as you would any perennial. Add a touch of all organic fertilizer to the planting hole and definitely mulch and make very sure to protect them from invasive plants. Non-natives are adapted to horrible, compacted soil of all types- they are survivors that are adapted to win. Plant densely and by all means, MULCH and care for your native plants they require our assistance.
Climate Adapted Plants for Gardeners in the PNW
Woodwardia fimbriata
Our native Giant Chain Fern that occupies specific spots in seeps randomly from CA to BC. Large pendant and trailing 3′ long glossy fronds form huge rosettes. Usually occupying permanently wet seeps on shady hillsides in cool places. The entire plant may be up to 5′ across. Evergreen but it benefits greatly from some early spring tidying of spent and aging old leaves. Part shade to shade in rich well drained soil with regular consistent moisture for the best look. Highly deer resistant. We’re honored to grow this, one of our most spectacular native ferns. Oregon native plant.
Woodwardia unigemmata
Relatively new fern with a great future ahead. Large growing evergreen chain fern from Asia with new growth lavishly dyed red- it settles to soft green with time. To 3′ across the fronds are held atop relatively long stems. The rubbery green leaves are finely divided with surprisingly soft lobes. Rich, moisture retentive soil in bright shade to shade. Spectacular plant at all times we have observed it. So far it has not suffered damage in my garden below 10ºF and appearance following a rough winter was good. Highly deer resistant. Spectacular.
Wulfenia x schwarzii
Obscure perennial hybrid that has yielded a wonderful perennial. Evergreen rosettes of fleshy scalloped green leaves look good year round. From February to June (yep.) 10″ spikes are covered in violet blue tubular flowers. The display is continuous for months. Part shade in rich, well drained soil with regular summer water. Mass for a stunning effect for months. A natural for PNW woodlands. Cold hardy and easy to grow. Not bothered by slugs or snails. Excellent perennial that has amazed us with its long, uninterrupted bloom period which is continuously showy with no intervention from the gardener. Mix with spring blooming perennials. Mine makes its life with regular old wild Primula vulgaris. I love the soft yellow flowers paired with this violet-blue hue. Easy, showy, and carefree perennial. This plant has everything needed for greatness. Too bad its so obscure. We intend to change that.
Wyethia angustifolia
Mules Ears are rare in cultivation. These cheery bold perennials make the transition of our wild flowers from spring into real summer. So named for its long leaves it forms very permanent spreading colonies in clay soils in habitat. The brilliant yellow sun flower blossoms rise up on sturdy stems directly from the ground. Each ebullient large flower is about 4″ across. Blooms appear from late April to early June. This plant usually finishes blooming just as summer drought commences. Its a memorable sight in wild meadows where it blooms simultaneously with native Rosa nutkana and Farewell to spring (Clarkia amoena var. lindleyi) and Giant blue eyed mary (Collinsia grandiflora). Wonderful cut flower and immediate and popular pollinator perennial. This plant was once very common in the Willamette Valley but civilization has immensely shrunk its native range. Good, long lived garden plant that goes summer dormant quickly after blooming has ended. The leaves turn gray and brittle and can easily be removed then. Give it a summer rest w/ little to no summer water once established. Full sun to very light shade. Water to establish its first season then none in subsequent years. Fun to grow and LONG lived. To 14″ in bloom forming a plant several feet across. Moderate deer resistance. Native to the Portland city limits. Very slow to finish in a salable size. Patience. Limited quantities. Oregon native plant
Zantedeschia aethiopica
Calla Lily- the dream of many gardeners and an heirloom perennial that has been grown in our region for eons. Large clump forming perennial with dramatic pure white flowers with the familiar form. They begin in early spring with a large flush of bloom and then sporadically until frost. The large boisterous foliage is mostly evergreen and rises to 2′ tall with flower spikes twice as tall. Deer resistant. In cold gardens it is traditionally grown agains warm foundations. But I have seen it thrive in the wide open in the coldest parts of the Willamette Valley. Amenable to saturated soils and can reside as a marginal plant in a pond. Rich, well drained soil is ideal. Water VERY heavily the first summer to establish- then light consistent water in summer. Full sun to quite a bit of shade but at the expense of flowering. Can be a little tricky to establish and ironically it can be a little hard to get rid of once you have it. Lives for many decades. South Africa.