New Plantings in the Arboretum: 2021 in Review
In the latest issue of the Arboretum Bulletin, UW Botanic Gardens Curator of Living Collections Ray Larson writes his annual, in-depth review of new...
Bulletin
Bulletin Stories
Quest for Gold: Fall Color in Larches
Broadleaf deciduous trees such as maples and sourwoods aren’t the only stars of the fall foliage season. Deciduous conifers such as larches...
15 Pacific Connections Plants for Your Garden!
Looking to add some pizzazz to your home garden? In the latest issue of the Arboretum Bulletin, landscape designer Janine Anderson profiles 15...
Mapping Western Red Cedar Dieback
Western red cedar (Thuja plicata), an iconic tree species of the Pacific Northwest, is in trouble. In the past few years, there have been widespread...
Hidden Treasure of the Arboretum: Mountain Stewartia
Stewartias are among the stars of the summer-flowering season at the Arboretum. While the Asian stewartia species in the main grove on the southern...
Tried and True Grasses for the Northwest Garden
Ornamental grasses are finely textured plants that lend a casual and relaxed feeling to your landscape. They move with breezes and glimmer in...
Tried and True Shrubs for the Northwest Garden
We know that fall is the best time to plant shrubs in our region. But what are some of the more beautiful, useful, and easy-care varieties to grow?...
News Articles
Olmsted Design Principles and the New Zealand Forest
PHOTO: The Olmsted-era Lookout Gazebo in the Arboretum's New Zealand Forest. This year marks the 200th anniversary of the birth of Frederick Law Olmsted. Numerous celebrations are taking place around the country to mark the bicentennial of this iconic landscape...
Rhododendron Glen Stream Restoration Begins This Month
New astilbes in bloom along the upper stream in Rhododendron Glen.The Arboretum has made great progress on plant collection restoration in Rhododendron Glen over the last three years, but the stream restoration portion of the project has been delayed due to a...
REI Hosts Huge Work-Service Event at the Arboretum
Volunteers in the wetlands beside South Azalea Way.More than 100 volunteers from REI helped care for the Arboretum on Thursday, July 21 during one of the company's regular work-service events. The group members were all from REI's IT division and included folks who...
Bulletin Stories
Climbing Hydrangea of the Arboretum
The Arboretum is home to a number of spectacular climbing hydrangea species, including nine specimens of the liana (woody vine) Hydrangea anomala, such as the one pictured above in Rhododendron Glen. Some specimens date all the way back to the beginnings of the...
Snakebark Maples of the Arboretum
We admire the stripes of tigers, zebras, and exotic reptiles as marvels of natural pattern. The plant world has its fair share of stunning striation, too, perhaps no more astounding than in the snakebark maples (including the Japanese red snakebark maple, Acer...
Arboretum-Based Research Tackles the Azalea Lace Bug
Since 2015, the invasive azalea lace bug (Stephanitis pyrioides) has been causing serious damage to azaleas and rhododendrons in our state, including in the Arboretum. A tiny aphid relative, the lace bug removes chlorophyll from Rhododendron foliage, weakening the...
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