1)    Alnus glutinosa ssp. betuloides
Birch-leaved Alder

Native to the mountains of eastern Turkey.
Listed as a threatened species by the International Union for Conservation of Nature.
Autumn brings pendulous male catkins and the mature female cones.

 
2)   Catalpa x erubescens        Indian Bean Tree

Uncommon tree with fetching, large, chocolate-purple young leaves that turn green.
Late summer brings masses of creamy white flowers flecked with yellow. 

This past April the Camellia area of the Washington Park Arboretum was paid a scientific visit by UW SEFS professor Dr. Darlene Zabowski and students from her Advanced Soil Genesis and Classification course (SEFS 513).

View plants bearing a variety of fruits, nuts, cones & seed pods during the Free Weekend Walks.

The State of the Arboretum

1)   Liriodendron tulipifera        Tulip Tree

The state tree of Indiana.
The Western Hemisphere representative of the two-species genus Liriodendron, and the tallest eastern hardwood.

2)   Pinus resinosa                 Red Pine

The state tree of Minnesota.
It is a long-lived tree, reaching a maximum age of about 500 years.
The wood is commercially valuable in forestry for timber and paper pulp, and the tree is also used for landscaping. 

Heads up for drivers and neighbors: full highway closure this weekend, with overnight work
SR 520 will be closed this weekend between Montlake Boulevard and 92nd Avenue Northeast to allow for critical construction activities. The highway will close at 11 p.m. Friday, Nov. 14 and reopen by 5 a.m. Monday, Nov. 17. Crews will take advantage of the closure to continue demolishing the section of the “Ramps to Nowhere” that passes over SR 520 near the Washington Park Arboretum. 

One of more famous locations in the Washington Park Arboretum is known as the Holmdahl Rockery, located along Lake Washington Boulevard E., and now the location of the Gateway to Chile Forest in the Pacific Connections Gardens section.

We have big news about the Graham Visitors Center in the Washington Park Arboretum. We bid a fond farewell to the very plain name of the Large Meeting Room and welcome Wisteria Hall to the UW Botanic Gardens family!

Edmonds Community College student, Nichole Sheehan, reflects on her summer spent as a curation intern. “I really enjoyed the behind-the-scenes aspects such as reading historical plant condition notes and evaluating plants for health and maintenance using my pests and diseases classwork.”

you are outside. The sun is shining, illuminating the new growth on the western red cedars. It’s been a great growing season and the plants at Washington Park Arboretum are thriving. The backdrop of evergreen trees is a lovely frame to all of the native and non-native plants in the collection. Now, if they would just get here!
Just when you thought you couldn’t wait any longer, here comes the bus holding 60 scheduled school-aged children just bursting with energy and excitement to be out of school and outside on such a fine day as this. 

Arboretum Tree Removal Notification:
 
The week of 8/25/14, UWBG tree crew will embark on a project located in the Winter Garden (read about project below). 
4 western red cedars will be removed due to negative impact to plant collections and garden encroachment. 
All pedestrian path detours and other safety considerations will be handled by tree crew. 
If possible, cedar logs will be salvaged for future park uses.