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PROTEACEAE

The Protea family is an exciting and diverse group of plants, some of which are certainly hardy enough for western Washington, while many more remain untried so far. For anyone attempting to grow them, it should be noted that fertilizers containing Phosphorus should be avoided, as this may kill the plants. See Proteas in Seattle for further information.

In case anyone is wondering why some species are disappearing from this list, it is because these plants have already proven to be so popular that some have sold out already or are nearly so. Of course, I'm doing my best to produce many more of them, as well as keep this list up to date.


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Banksia marginata - SILVER BANKSIA NEW Fall 07!
$14
Shrub/tree to 40', lvs w/silvery undersides, spectacular corn-shaped yellow fls. 18°F. Aust.
Banksia saxicola - GRAMPIANS BANKSIA NEW Fall 07!
$16
Shrub to 10', oak-like lvs silvery below, numerous bright yellow cone fls. 22°F. SE Australia.
Grevillea 'Austraflora Canterbury Gold'
$12
Recent references shorten the name of this plant to just 'Canterbury Gold' which thankfully is a bit less of a mouthful. A low, mounding shrub with grey-green leaves, it can be thought of as a groundcover that shoots up the occasional semi-upright branch. Rather large, sulfur yellow flowers appear sporadically throughout the year, but most frequently in winter and spring. Like its parents G. juniperina and G. victoriae, it is very vigorous, hardy, and undemanding; tolerating drought and heavier soils with ease. It is somewhat shade tolerant but will not bloom as well in the shade. Hardy to about 5°F.
Grevillea juniperina 'Pink Pearl'
$9
This hybrid has been compared to 'Canberra Gem' and has even been considered the same plant. However, it is quite distinct, having more "plumose" growth on pale white stems, and numerous pink flowers along the branches more so than at the tips. Like most of the hardy Grevilleas, blooms over a long period and will adapt to many garden situations. It is exceptionally vigorous and easy to grow, demanding only a sunny spot. Hardy to about 5°F.
Grevillea juniperina var. sulphurea NEW Fall 07!
$12
Vigorous shrub to 6'+, needle-like lvs, sulfur yellow spidery fls over long period. 0°F. Australia.
Grevillea lanigera 'Mt. Tamborintha' NEW Fall 07!
$9
Low shrub to 1' x 3', showy pink fls belie conifer-like lvs, easy, good in containers. 10°F. Aust.
Grevillea miqueliana
$12
A beautiful, large, spreading shrub to 10' with rounded, green leaves and sulfur yellow or yellow and red/pink flowers in profusion; this sturdy, adaptable and vigorous plant brings another flower color to the palette of larger-leafed hardy Grevilleas. Like many Grevilleas, it will produce flowers over a long period and always looks great, tolerating drought and poor soil with ease. It is closely related to G. victoriae, and is some older references list it as a subspecies of G. victoriae. Hardy to about 10°F.
 
Grevillea 'Penola Pearl' NEW Fall 07!
$12
This Grevillea strongly resembles G. rosmariniifolia in habit and in its narrow leaves, but with very dark green leaves and dark pink-red flowers in loose clusters. It makes a dense shrub to 6' or more over time with greater spread. As with most Grevilleas, it will appreciate as much sun as possible and is happy on poor, dry soils. Although not well known, this hybrid appears to tolerate a wide range of soils with ease, and it has been perfectly cold-hardy so far, to at least 10°F.
Grevillea 'Poorinda Royal Mantle' NEW Fall 07!
$16
One of the best known toothbrush-flowered Grevilleas in Australia, this tough, versatile and attractive hybrid is considered the "old standard" by which all new groundcover Grevilleas are measured. For some reason, it has never really caught on in the United States, though it is grown on a limited basis in California. Forming a low mat just a few inches high and spreading indefinitely, the dark green leaves (bronzy when first appearing) may be strongly lobed or entire, often on the same branch, which is an intriguing sight to see for those not accustomed to the ways of Grevillea. The dark magenta flowers are said to appear over a long period in hot climates, but in the Pacific Northwest it thus far seems to flower all at once in spring and early summer. We shall see if this changes as my specimen matures. This plant will tolerate drought or some irrigation, and is ideal for covering hot sunny banks. In the Pacific Northwest, it will be happiest in gardens receiving less than about 40" of annual precipitation (it will tolerate more, but performs best with superb drainage where there is an excess of winter precipitation). Hardy to about 10 to 15°F, perhaps a little lower if grown tough. It is also known to tolerate summer heat and humidity, and may do well in parts of the Southeast US.
Grevillea rosmarinifolia - ROSEMARY GREVILLEA NEW Fall 07!
$12
Shrub to 4' w silvery grey lvs, soft pink fls summer. For sunny dry bank. 10°F. Australia.
Grevillea rosmarinifolia 'Scarlet Sprite' NEW Fall 07!
$14
Vigorous shrub to 7' x 9', very fine needle lvs w white stems, bright scarlet fls. 10°F. Aust.
Grevillea victoriae
$9
Along with G. juniperina, this species is the other prominent representative of hardy-Grevillea-land. An attractive shrub in any season, its felty, silvery, upward pointing leaves provide the perfect backdrop for the numerous racemes of rusty orange flower buds. These appear in fall and open sporadically into vermillion-red spider-like flowers throughout the fall and winter, so that the plant is seldom out of bloom when hummingbirds are most in need of a drink. It has a naturally dense habit and may reach 10' or more over time with equal spread. Though it comes from high mountain areas of the Australian Alps, where it is buried in snow much of the year; it is adaptable to any well-drained site, handling regular irrigation or drought with ease. It will tolerate some shade, but performs best in sun. G. victoriae has a proven track record the Seattle area, demonstrating itself to be fully hardy through the coldest winters, and is always attractive and trouble free. Most Northwest gardeners who have discovered this plant cannot imagine their garden without it once they have tried it. It has also proven adaptable to hot summer climates, being successful at Plant Delights Nursery in Raliegh, NC. Hardy to 0 to 5°F.
Grevillea victoriae 'Marshall's Seedling'
$10
This outstanding and hardy plant originated as a chance seedling at the former Western Hills Nursery in Occidental, California. Named for the late owner Marshall Ulbrecht, it is listed as a form of G. victoriae but is obviously a hybrid of this species and something with narrower leaves. It is a very vigorous shrub to 10' or more with orange flowers which appear over a long period, and narrow grey leaves to about 2" long. It has the general aspect of Grevillea 'Poorinda Constance' but with larger flowers and leaves. Very hardy and adaptable, it ought to endure 5°F without harm, will tolerate most soils and even a little shade.
 
Hakea nodosa New Fall 07!
$14
Upright shrub with needle-like lvs, yellow fls, showiest of hardy Hakeas. 10°F. Australia.
Leucadendron laureolum - GOLDEN CONEBUSH NEW Fall 07!
$14
Rounded EG shrub to 6', cut fl with showy yellow bracts. 24°F, containers! South Africa.
 
Leucadendron rubrum - SPINNINGTOP CONEBUSH NEW Fall 07!
$14
Shrub to 7', beaufitul foliage, cut fls. for full sun, poor soil. Protect below 22°F. South Africa.
 
Leucadendron salignum [unknown variety] - SUNSHINE CONEBUSH NEW Fall 07!
$14
Fine foliage exc for cutting, red winter tips, surprisingly cold hardy to at least 20°F. S. Afr.
Protea neriifolia - NARROW-LEAF SUGARBUSH NEW Fall 07!
$14
Evergreen shrub to 8', 'bearded' orange fls, protect from winter wet/hard frost. 25°F. S. Afr.
 
Protea punctata NEW Fall 07!
$16
Shrub to 10' w/showy purple fls, montane sp. prefering moist soils in the wild. 18°F? S. Afr.