Signs of Spring at the Washington Park Arboretum

1) Leucothoe davisiae Sierra Laurel
This evergreen member of the Heath family is native to the mountains of eastern and northern California where it grows in bogs and seeps.
The hot-pink buds will open in spring to reveal white urn-shaped flowers.
You can find Leucothoe davisiae in the Cascadia Forest.
2) Magnolia sargentiana var.
Examples of the Plant Collections Network at the Washington Park Arboretum

Several genera at the Washington Park Arboretum are part of a multi-site nationally-accredited plant collection administered through the Plant Collections Network of the American Public Gardens Association. The Plant Collections Network is one of the most significant networks of cultivated living plant collections on Earth and is used for taxonomic studies, evaluation, breeding, and other research. The Network stewards diverse living collections at public gardens across North America to safeguard plants and share them with the world.
Read moreWinter Interests (Part II) at the Washington Park Arboretum

1) Chamaecyparis pisifera ‘Plumosa Compressa’ Dwarf Sawara Cypress
This cultivar of the Japanese native, Sawara Cypress, has soft blue-green foliage.
Growing only one to six inches per year, this 50 year-old specimen can be seen just at the entrance to the Graham Visitors Center along Arboretum Drive.
2) Corylus maxima ‘Atropurpurea Superba’ Purple Giant Filbert
This cultivar of the Giant Filbert, or Hazel, produces long red male catkins in winter before the bright red young leaves emerge.
Read moreWinter Interests at the Washington Park Arboretum

1) Camellia sasanqua ‘Briar Rose’ Briar Rose Camellia
This medium-sized, flowering evergreen shrub is native to Japan. Camellia sasanqua has many cultivars with the most popular being varieties that bloom in winter.
You can currently view ‘Briar Rose’ Camellia in bloom, sitting at the Mary Hughes Foxworth memorial in the Camellia Collection.
2) Garrya x issaquahensis Silk Tassel Tree
The Silk Tassel Tree is a medium-sized evergreen bush with an abundant winter floral display of long male catkins that are creamy white-to-light green with pink highlights.
Read moreHappy Holidays from Your UWBG Horticulture Staff!

We invite you to enjoy our “Game of Groves”.
Can you name the following iconic tree groves based on the photos shown and hints below?
#1)
I am a grove of nine broadleaf evergreen trees with berries that are commonly used as Christmas greens. My location is an “island” in the middle of the ocean surrounding our five Pacific Rim flora.
Selections from the New Zealand Garden at the Washington Park Arboretum

1) Coprosma propinqua Mingimingi
Coprosma is a genus of about 90 species of shrubs and trees found in various Pacific regions, including New Zealand and Australia. They range from trees to low-growing spreading shrubs and those with a divaricating habit.
A member of the plant family Rubiaceae, C. propinqua is found in swampy areas and near streams throughout New Zealand. The leaves are very small and oblong and the berries are a translucent blue color.
The Purples and Reds of Fall from the Home of UWBG Horticulturist, Annie Bilotta

1) Forsythia Common name: Forsythia or Easter Tree
A staple of many gardens, it is a harbinger of spring with its early yellow blossoms. It also provides some very nice fall color, extending its garden interest.
A member of the Olive family, Oleaceae.
Nicknamed the Easter Tree because it blooms around Easter time in early spring.
There are approximately 14 species, mostly from Asia.
“Barking up the Right Tree”

1) Stewartia monadelpha Orange Bark Stewartia
Stewartia monadelpha is a small tree (up to 25 feet high) with stunning cinnamon bark.
A member of the Camellia family, the white flowers resemble those of small, simple Camellias and can be viewed in early summer.
Several beautiful specimens can be viewed at the southern end of the Camellia Collection.
2) Lagerstroemia indica x fauriei ‘Muskogee’ Muskogee Crepe Myrtle
This garden hybrid was developed by the National Arboretum in Washington, D.C.
Read moreSelected Cuttings from the Washington Park Arboretum and the Garden of Virginia L. Morell

Virginia L. Morell was an avid gardener, president of the American Holly Society, Arboretum Foundation board member, and volunteer at the Washington Park Arboretum. Virginia and Jean L. Haigh started the Arboretum ‘Saplings’ Program, which they ran for two years. This program was taken over by UW Botanic Gardens Youth and Family Education and now serves thousands of school children each year.
Read moreMore Summer Specials at the Washington Park Arboretum

1) Clerodendrum bungei Rose Glory Bower
Rose Glory Bower (of the Lamiaceae family) is native to China and northern India.
This shrub spreads aggressively by root suckers and has become invasive in the South.
The rosy-red flowers are very showy and fragrant and attractive to butterflies.
You can find Clerodendrum bungei along Azalea Way below the Winter Garden.
2) Hydrangea serrata ‘Blue Bird’ Blue Bird Hydrangea
The Blue Bird Hydrangea was an Royal Horticulture Society Award of Merit winner in 1960.
Read more