Erodium chrysanthum

Cranesbills come in all colors but this is one of the most garden worthy, in fact its one of the best perennials for our climate. A GREAT PLANT PICK. Tightly clumping perennial with frilly silver intricate leaves. Beginning in spring and continuously to frost a constant supply of soft yellow cupped flowers on 5″ stems. Pale yellow with silver. YUM. Full sun and rich to average WELL DRAINED soil. Light to little summer water- actually once its established I never water it and everything is just fine. Nice en mass. Rock gardens- thrives in the hellstrip. Not a fan of shade. Winter deciduous- unusual for an Erodium. Long lived.

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Eryngium pandanifolium

Kind of hard to believe this is a sea holly but this enormous evergreen perennial from Argentina definitely is. Long upright soft green spikes leaves emirate from a large rosette to about 3′ tall by 3′ wide. In summer 6′ tall spikes support off white orbicular flowers on tall divided scares. Pollinator heaven. A very dry climate appearance lends it to pair with cactus, Nolinas, even Agaves. Gravel gardens large dry borders. Full sun and very little water once established. Protect from subfreezing wind if an arctic event threatens. High deer resistance. Big bold plant.

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Eryngium pandanifolium var. lesseauxii’

Fun tall growing sea holly that may be impossible to pronounce but its easy to grow. Upright growing finely serrated or prickly leaves first make a low 2′ wide rosette then when it feels like it- usually the second year a big as spike rises with a divided scape and tons of off white prickly clover like flowers dot the stem tips. Its cool. This whole perennial is cool and its slightly hardier than the species. Very cool. Evergreen perennial for full sun and just about any well drained soil. Flowers rise to 5′ tall and with time there will be many spikes. Pollinators arrive in droves to pollinate this very unusual but architectural perennial from South America. High deer resistance.

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Fargesia robusta

Excellent CLUMPING bamboo that is adaptable to a wide range of situations. Ultimately 15′ tall the 3/4″ culms rise up green with dramatic white culm sheaths before changing to a golden yellow. The foliage is dense and clusters around the top 3/4th of the canes. Easy to grow bamboo for redistricted sites in high overhead shade to full sun (but avoid the reflected heat of walls). Spreads moderately fast by a steadily increasing clump- each new culm is just inches from the other. Forming a grove to 4′ wide at the base in 6 years. Very upright growth makes it ideal for the thin space between houses, or for shading a courtyard. Regular summer water in rich, moisture retentive soil that drains. Drought adapted when established. Good performance in ice and snow. Hardy.

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Fragaria vesca var. bracteata

Woodland strawberry that is native to large parts of Oregon. This upright growing smaller strawberry is delightful when pristine white flowers morph into sweet pendant red fruits. To 10″ tall and as wide this clumping plant expands at a moderate clip forming patches in rich to average soil with light, consistent summer moisture. Blooms in April- fruit arrives in June. This is the locally native form of this widespread plant. In France the same species is famous as Fraise du Bois. Our local species in Oregon will produce several rounds of fruit with reliable irrigation. This is not a long lived species and it seems to find its happy place on its own. Expect several years lifespan and leave fruit on the plant annually to ensure reseeding. Great in containers. Use in partly shady borders, its a diminutive plant and fits nicely among larger perennials. Great for fresh eating…and dogs like them too so protect from marauding pooches. Very natural lining woodland paths. Semi-deciduous to winter deciduous. Native to the Portland city limits. Oregon native plant

 

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Genista aetnensis

Mt. Etna Broom is a remarkable TREE from the slopes of Italy’s tallest active volcano. Unlike Scotch Broom (Cytisus scoparius) this fine, leafless tree will NEVER become a pest in our climate. Rush like pendulous green stems are replete with yellow jasmine scented pea flowers for months in summer. This tree casts no shade but provides an elegant vertical element. The sweet perfume travels many feet on a warm day. Blooms May-August. Fast growing drought adapted tree to 18′ tall and 8′ wide in 10 years. Full, all day sun in a hot position in poor to average very well drained soil. Little summer water once established. Forms a very nice trunk in time. Plant with drought adapted shrubs/perennials. Wonderful small garden tree where you need height but don’t want shade. High deer resistance. Slightly tender when very young- fully hardy as an adult (3-4 years). Spectacular in bloom. No shade, it casts no shade.

Photo credit: Loree Bohl (Danger Garden)

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Geranium x ‘Rozanne’

Possibly the best hardy Geranium ever selected. Sky blue flowers with a slightly white center appear non-stop from June to frost on this vigorous and flowery perennial. To 18″ tall and twice as wide or more. Well drained soil of average to rich fertility with light consistent summer water. Planted adjacent to shrubs and trees this perennial may actually act as a climber- rambling up into lower branches and displaying its cheery blue flowers up high. Full sun to light shade and regular summer water. Winter deciduous. As with all hardy Geraniums it shows great resistance to slugs/snails. Unauthorized propagation prohibited. PP#12,175.

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Gilia achilleafolia

Yarrow Gilly Flower as the 49ers named this sweet little annual California wildflower. Frilly green foliage gives rise to 10″ stems supporting violet to sky blue flowers. Blooms May-July in our climate. Very easy to naturalize in open disturbed sites. A great reblooming pollinator wild flower. Makes sweet little bouquets as well. Full sun and lose un compacted soil- turn the soil to incorporate oxygen before planting. Light summer water keeps things going. Or it will finish with drought setting seed for the next years performance. A reliable and useful re-seeding plant for open, rocky places, where no sane plant can find purchase. Often comes up in the ‘Alba’ white form which is fantastic and makes the blue form seem more intense. Great little cut flower. Very light H20 extends the show.

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Grevillea juniperina ‘Firewoman’

About 15 years ago we planted this tiny seedling at the top of our propagation hill behind our wholesale nursery in Sherwood. After all those years and two trips down to 5ºF, numerous ice, snow, wind events it has remained completely happy and unblemished. This is closer to the species in form. To 4′ tall x 6′ wide in 5 years. Very prickly needles pose as the leaves forming a very formidable shrub. From January to July flaming red/orange flowers are curly and lick the tips of the stems like flames. And LOVED by hummers. Full sun to part shade, the very poorest, most well drained soil with no summer water once established. Takes clay soils on slopes. Completely drought adapted and it likes it that way. Great deer resistance. Long season of bloom on a charming architectural evergreen shrub.

Xera Plants Introduction

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Grevillea juniperina ‘Lava Cascade’

Low ground cover form of the Juniper Grevillea. Spreading to 6′ wide it rises to just 2′ when happy. Most of the time it is much lower. This selection is the most commonly seen orange form of this species. Spidery orange/red flaming flowers appear in clusters at the branch tips. The most likely bloom period is February-June- but older plants pump out sporadic flowers year round. Excellent on slopes- especially warm south facing slopes in a protected location. Surprisingly cold hardy enduring temperatures down to about 8ºF with no damage. Avoid subfreezing wind as well as boggy conditions and crowding fro other plants. Extremely drought adapted requiring no supplemental water after a year or two. Highly deer resistant. Excellent evergreen- but prickily shrub for Hell strips. Loved by hummingbirds. We have since introduced G. j. ‘Xera Ember’ which is a more compact shrub 2′ x 4′ and has merely deeply hued (bordering on red) flowers for a longer period. Gains hardiness with age. Pictured here with ‘Molonglo’.

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