336 posts in Washington Park Arboretum

May 2018 Plant Profile: Rhododendron ‘Ken Janeck’

Rhododendron 'Ken Janeck'

With blushing pink flower trusses and leaves with a layer of attractive fuzz underneath, Rhododendron ‘Ken Janeck’ is a sensational shrub for Northwest gardens.

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Two New Ways to Experience the Arboretum

We are excited to introduce two new ways of experiencing the Arboretum.
For a more active person, we are offering Arboretum Running Tours. We’ll combine exercise, education, and entertainment on a fun running tour through the Arboretum, one of Seattle’s Olmsted Parks and home to the University of Washington Botanic Gardens’ world-class plant collections. You’ll learn about the history and design of the park, a few choice plants, and traditional or modern uses of various plants along the route. 

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Selected cuttings make their appearance in late March at the Washington Park Arboretum

Selected cuttings from the Washington Park Arboretum, March 19, 2018 - April 1, 2018

1)  Berberis darwinii                     Darwin’s Barberry

This barberry was discovered in Chile by Charles Darwin in 1835 during his voyage on the Beagle.
Located in the Chilean entry garden of the Pacific Connections Garden, the red-tinted flower buds open to bright yellow-orange flowers.
The abundant summer fruit of this barberry is sweet and delicious as opposed to our native sour barberries (mahonias). 

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Flowering Cherries Need Help to Stay Healthy

The UW Botanic Gardens staff use integrated pest management to keep flowering cherry trees healthy and beautiful.

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First to Flower in March

Selected cuttings from the Washington Park Arboretum, Marcy 5 - 18, 2018

1)  Forsythia ovata     Korean Forsythia

This genus is named in honor of Scottish botanist William Forsyth. Forsyth was a founding member of the Royal Horticulture Society in England.
A short and spreading deciduous shrub that is popular in gardens and yards for its early spring display of bright yellow flowers.
These are planted throughout the park, but can be enjoyed walking down Azalea Way. 

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Requiem for Two Oaks and a Southern Beech

Selected cuttings from three significant tree collections in the Washington Park Arboretum, February 19, 2018 - March 5, 2018

“So if you’re travelin’ in the north country fair
Where the winds hit heavy on the borderline
Remember me to one who lives there
She once was a true love of mine.”
– Bob Dylan
Three significant tree collections succumbed to frigid north winds this past weekend.  These cuttings pay homage to their past lives.
1)   Nothofagus pumilio                Lenga Beech in Mapuche language      (Grid 49-2E)

This Chilean deciduous tree from the Andes (accession 637-70*A) was received as a whole plant from Edinburgh Royal Botanic Garden in 1970. 

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Colorful Willows and Dogwoods for Winter

Selected cuttings from the Washington Park Arboretum, February 5 - 18, 2018

1)  Salix  ‘Swizzlestick’                   Corkscrew Willow

Thrives in wet locations and is salt tolerant.
Orange-yellow young twigs that have a corkscrew growth pattern
Cut back hard in spring to promote attractive new branches.

2)  Cornus sericea  ‘Flaviramea’ Yellow Twig Dogwood

Medium to large, deciduous shrub
Bright yellow-green young twigs easily grown in medium-to-wet soils in full sun or part shade.
Species native to North America (excluding lower mid-west and deep south)

3)  Salix alba  ‘Britzensis’             Coral Bark Willow

Fast growing to 80 feet tall, but may be coppiced each spring. 

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Feb 1, 2018 / Washington Park Arboretum, Plant Profiles / Ray Larson, Curator of Living Collections

February 2018 Plant Profile: Prumnopitys andina

Prumnopitys andina

Prumnopitys andina superficially resembles a yew, which is part of the reason for its English common name, Chilean plum yew. The other part is from the female cone resembling a small plum.

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Glimpse into the past – the Miller Library Legacy of Lyn Sauter

Lyn Sauter

The Northwest lost a pioneer in horticulture, native plants, and libraries on December 14, 2017, when Lyn Sauter passed. Born in Snoqualmie Falls, WA, she first earned a degree in Chemistry at Seattle University. She then met her husband, Hansjoerg Sauter, a German medical resident. They married and had four children. She then returned to the University of Washington where she earned a graduate degree in Library Science, a field she pursued for the rest of her life. 

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Color in Winter at the Washington Park Arboretum

Selected cuttings from the Washington Park Arboretum, January 22 - February 1, 2018

1)   Sarcococca hookeriana var. digyna                     Sweet Box

Evergreen, rhizomatous, suckering shrub
Purplish stems with narrowly lanceolate, mid-green leaves and clusters of small, creamy-white, fragrant flowers
Native to western China

2)   Hamamelis mollis                      Chinese Witch Hazel

Medium-to-large, deciduous shrub
Fragrant yellow flowers often with a red base, with four ribbon-shaped petals that grow in clusters
Native to central and eastern China

3)   Daphne bholua  ‘Jacqueline Postill’                     Bhulu Swa, Nepalese Paper plant

Evergreen shrub
Leathery leaves and deep pink flowers with a powerful fragrance
Native to the Himalayas and neighboring mountain ranges from Nepal to southern China

4)   Garrya elliptica  ‘James Roof’                    Silk Tassel

Evergreen shrub to small tree
Yellowish-colored, male catkins that dangle 12″ or more from the ends of the branches in winter to early spring and turn gray as they age. 

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