Grevillea x ‘Marshall Olbrich’

Pretty and very large Grevillea that deserves the mildest parts of the garden. Small gray leaves are handsome and a great backdrop to the hot orange pendant clusters of flowers. Blooms year round with an especially large flush in spring. Loved by overwintering Anna’s Hummingbirds. Not the hardiest Grevillea- protect from subfreezing east wind- site on a south or west facing aspect. To 9′ x 9′ fast. Plant in UNAMENDED native soil- avoid compost and fertilizer. Supremely drought adapted. Avoid watering in summer. Excellent performance at the Oregon coast. Our stock plant which has thrived for 15 years in a very cold place is situated on a slope with the overhead protection of Douglas firs. Evergreen. High deer resistance.

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Grevillea x ‘Neil Bell’

A chance seedling in Neil Bell’s Monmouth, Oregon garden has yielded one of the finest Grevilleas that we can grow. Neil graciously shared cuttings of this seedling to us. It then bloomed and turned out to be a fantastic shrub and we named it after Neil. Large evergreen shrub with dapper paddle shaped leaves olive green on top and gray underneath. Year round spidery pendant tomato red flowers appear- waxing and waning with the weather- they favor cooler weather. Fast growing and completely drought adapted. Water to establish then none in subsequent years. Takes well to tip pruning. Well drained average to poor soils that have NOT been improved. Adaptable to clay especially on slopes. Loved by hummingbirds and predominantly staked out in winter by Anna’s who recognize it as a superior food source. It has been cold hardy to 5ºF planted in the ground suffering no damage. 8′ x 8′. Cold adapted Grevilleas have flower buds insulated with fine fine hairs- this protects them from the coldest temperatures. Open flowers may be damaged by lows colder than 23ºF but new, protected flower buds will open in the next thaw so the display resumes quickly.  Prune in early summer- this produces a denser shrub and will spur it to into bloom. Grevilleas may have as much as 1/3 of their mass removed annually and will regrow rapidly. This can be useful for shrubs that have grown too fast or rank and need to be stabilized by resizing.  Cut branches with flowers last in a vase in winter and its a great time to have vibrant cut flowers. Do not water during very hot weather- it is adapted to the most desiccating heat and dry with no ill effects. Fantastic shrub. Protected location. Flower buds do not abort in hot dry weather.

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Grevillea x ‘Octopinky’

This seedling showed up in my garden about 6 years ago. It must have been from ‘Constance’ which froze out but this seedling remained. Curious shrub with congested deep green small leaves lining long arching branches. Shows little interest in branching on its own- you can fix this with a few snips of the terminal ends of the branches. I was amazed to find the peach/pink flowers that arrived one spring. Orange on the outside the perianth reflexes when open to pink and peach.  Its parent plant had flowers of dark orange/red so this was a surprise. It blooms heavily with clusters of small curly flowers, the perianth reflexes and reveals a long style that is actually light brown. Curious shrub for the collector. Its been hardy below 10ºF in 2013 and since then has never shown cold damage . Full sun and average to poor well drained soil. Little to no summer water when established. The arching stems reminded me of an Octopus. Hence the name (with the clever help of Evan Bean). To 7” x 4′ at a moderate clip.

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Grevillea x ‘Poorinda Queen’

Subtle but beautiful hybrid Grevillea with fine needle-like foliage that produces a nearly constant parade of soft citrus orange spidery flowers. The perianth is soft orange and the protruding style is red. No matter the weather this carefree shrub seems to be in bloom. Heaviest flowering is in mid-winter just when the gardener needs it most. Large spreading shrub to 8′ x 8′ in poor, well drained native soil. Little to no summer water when established. Very very cold hardy enduring 5ºF with no damage. Give it room to spread as it can grow very fast. Takes light overhead shade if not too dense. Incredibly drought tolerant. Very difficult to propagate but we are always trying to make as much of this awesome shrub as possible. The intensity of the flower color shifts with the seasons gaining vividness with cooler temps. Wonderful winter blooming shrub. Grevillea victorae x Grevillea juniperina.  A Xera favorite. Protected location. Very good in the city of Portland.

 

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Grevillea x ‘The Precious’

Excellent introduction from Desert Northwest Nursery in Sequim, WA. This seedling of ‘Leanne’ exceeds that cultivar in several ways. First, it has decidedly smaller, needle-like deep green foliage. Second, its profuse flowers are a brighter and lighter yellow that is showy from a distance and great contrast with the darker foliage. This brand new plant is likely to reach 3′ x 5′ in 8 years. Moderately fast growing. Blooms begin in mid-winter and repeat to autumn. They take a brief break late in the year. They are a beacon to hummingbirds as well as gardeners in the the last cold days of winter. Full sun to very light shade in average, un-amended native soils. Good drainage is helpful. Very little to no water once established. Extremely drought adapted. Beautiful, free blooming shrub that has great promise.Somewhat open habit often with a twisting attitude. Lots of character. Thanks, Ian. High deer resistance.

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Grevillea x ‘Xera Peach’

We’ve been attempting to hybridize Grevilleas specifically, and that has proven to be difficult. What I rely on then are open pollinated hybrids – all Grevillea species can cross, pollinated by European honeybees in my garden they almost all set seed.  This is seed from a hybrid between Grevillea victorae x  Grevillea juniperina ‘Gold’. I sowed a bunch of seed and this seedling stands out as superior to the other seedlings and to many other Grevilleas that we grow. This is an upright growing and then spending evergreen shrub with distinctive small grass green wedge shaped leaves. The flowers are very large for a hybrid and the perianth is a soft citrus pastel orange. The style or pollen presenter begins life after opening with a red/melon color as it ages the style changes to light yellow from the tip down. The base of the style nearest the perianth remains dark melon red. Very heavy blooming selection. Flowers appear January-July and on older plants year round. The large clusters of un opened buds are shaded light pink before maturing.  Upright growing then spreading laterally with age. To 4′ tall and 6′ wide. All Grevilleas are a beacon to Hummingbirds and all birds as is this cultivar.  Full sun in average, un-amended soil. Dig a very large hole and water weekly until you see good new growth then taper to once a month. I’m very proud to offer this seedling, it is a vast improvement on other Grevilleas with similar size flowers- this one beats them all. Best in a warm, protected location.

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Grevillea x ‘Xera Red’

A very interesting Grevillea. This is a seedling of ‘Marshall Olbrich’ that appeared in my former garden. For the past 13 years its thrived in that garden reaching 5′ x 6′ forming an open spreading shrub. The evergreen leaves are soft gray on the underside and distinctly pointed. True red flowers appear year round and are a beacon to all hummers. Handsome shrub that has shown consistent hardiness and ease of culture. Full sun and average, native, un- amended soil. Plant this shrub and water until you see good new growth then taper off. For rapidly growing shrubs tip pruning controls not only the size but encourages root stability AND promotes flowering. Prune after a large flush of flowers. Full sun to very light shade in a warm position. Avoid subfreezing wind exposure. In those areas of east wind locate on a south or west facing aspect. Best true red flowers as of yet on a hardy hybrid. Mulch after planting with bark or gravel. Drought adapted when established. Limited quantities. Absolute hummingbird dream.

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Grevillea x gaudichaudii

Impressive ground cover Grevillea that can be difficult to locate. To less than one foot tall it spreads out laterally easily 8′ wide in 7 years. The distinctly oak shaped leaves on this shrub emerge deep red before settling to green. All the while it is producing red upward facing “toothbrush” shaped flowers. These appear from February to August primarily but can pop off occasionally year round. All together it forms an amazing ground cover shrub that features fantastic foliage and flowers in a bold tapestry display. Cold hardy to a bit less than 10ºF- it appreciates successively colder frosts to harden off for its ultimate frost resistance. Full sun to part shade in average, well drained soil. Light summer water increases the growth rate- and it can zoom once established. Avoid crowding from other plants- it seems to require good air circulation. Excellent performance on gravel mulch. Large rock garden plant or hot slope cover. Protect young plants from temperatures below 15ºF- it can burn the foliage. Hardiness increases with establishment. The very short trunk emerging from the ground can be surprisingly stout- several inches in diameter. Cover with  frost cloth- held down for wind protection during extreme arctic events. Drought adapted when established. A protected location. One of the coolest shrubs we can grow. A naturally occurring hybrid from the Blue Mountains. Excellent around and over boulders which add radiant heat during extreme cold. Should only be attempted in the mildest gardens.

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Hakea epiglottis

Beaked Hakea. Out of this world wiry shrub from Tasmania that forms nearly a tree with modified stems that serve as leaves. Fast growing see through plant that casts no shade for full sun and average to poor well drained soil. Proteaceous- avoid fertilizers and compost. Completely drought adapted needing no supplemental water once established.  Water regularly until new growth commences . Forms a large piece of architecture. In early spring tiny sulphur yellow flowers crowd the leaf axils and emit a sweet clove fragrance. Very easy to grow. Cold hardy to 5ºF but avoid blasting subfreezing winds from the gorge. Completely deer resistant. Very inviting  to small birds who will swarm the shrub to find protection in its wiry center- Bush tits adore this shrub To 8′ x 6′ in 5 years. Specimen, unusual hedgerow. Excellent cut material for groovy bouquets. Very fun to grow. Pronounced HAY-kee-uh.

 

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Hakea microcarpa

Unusual tree/shrub from alpine areas of Australia into Tasmania with spiky modified phyllodes as leaves. The spiky leaves are blue green and it forms an airy conifer like large plant very quickly. In spring flossy white flowers crowd the blue green leaf axils and are showy for several weeks. Full sun and average to poor well drained soil. Little summer water once established. Fast growing in youth to its ultimate size. Cold hardy for us to 5ºF but avoid exposure to subfreezing winds. Proteaceous- do not fertilize or even add compost. Un amended native soils are ideal. Very attractive to birds who will use the leaves as perches. Humming birds love this plant in bloom as well. To 9′ tall and 6′ wide in 6 years. Great on slopes. Casts no shade- great textural element year round. High deer resistance. Very unusual plant- out of the ordinary and cool. Pronounced HAY-kee-uh.

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