Arboriculture and Urban Forestry Web Sites

This page contains links to some useful sites of interest to arborists, urban foresters, and tree enthusiasts searching the Internet.  The links listed here will take you away from the PNW-ISA home page.  The links on this page include professional associations, government agencies, and non-profit organizations supporting our work as arborists and urban foresters.

Arboriculture Organizations

• International Society of Arboriculture - ISA is the world's largest tree care organization. 

• ISA Chapters - ISA is divided up into various geographic Chapters.  This link lists all of ISA's chapters.  The Western Chapter is the neighboring chapter to the PNW Chapter.

• ISA Professional Associations - ISA is also divided into professional affiliations representing the commercial, research, municipal, utility, and student segments of our society.

• Tree Care Industry Association - the new name of the National Arborist Association (NAA), a trade association of tree service companies.

• American Society of Consulting Arborists - ASCA is an organization of arborists who offer consulting services.

Urban and Community Forestry Agencies

• Each US state has an urban and community forestry assistance program.  Websites for states within the PNW-ISA Chapter are:

  • Alaska Division of Forestry

  • Idaho Department of State Lands

  • Oregon Department of Forestry

  • Washington Dept. of Natural Resources

  These state web pages also contain additional urban forestry links.

• The State Urban Forestry Coordinators Directory will help you find the state urban forestry program for the other US states.

• The USDA Forest Service is a partner in delivering urban forestry services to cities and communities throughout the state.

• The Center for Urban Forest Research and Education is the repository for a wide array of information on the economic and environmental benefits of urban and community forests.

• The Center for Urban Horticulture in Seattle is one of the best urban forestry resources in the Pacific Northwest.

National Urban Forestry Organizations and Resources

• Tree Link is the website containing the best source of all-around urban forestry information.

• National Arbor Day Foundation is the website containing details about Arbor Day, tree planting, and a variety of other tree information.

• National Tree Trust has grant programs and information for local urban forestry organizations.

• American Forests sponsors Global ReLeaf and a variety of other programs promoting trees and urban forestry.

• Alliance For Community Trees is a consortium of non-profit tree planting groups across the country.

PNW Arboreta and Botanical Gardens

• The Oregon Garden in Silverton, home of the PNW-ISA Chapter office, should be at the top of every tree enthusiast's list of places to visit.

• Alaska Arboreta and Botanical Gardens
  • Alaska Botanical Garden, in Anchorage
• British Columbia Arboreta and Botanical Gardens
  • University of British Columbia Botanical Garden, in Vancouver
  • Van Dusen Botanical Garden, in Vancouver
  • Butchart Gardens, near Victoria
  • Minter Gardens, near Chilliwack
• Idaho Arboreta and Botanical Gardens
  • Idaho Botanical Garden, in Boise
  • Idaho State Arboretum, in Pocatello
• Oregon Arboreta and Botanical Gardens
  • Mt. Pisgah Arboretum, near Eugene 
  • Connie Hanson Garden, in Lincoln City
  • Shore Acres State Park, near Coos Bay
  • Hoyt Arboretum, in Portland
  • Berry Botanic Garden, in Portland
  • Leach Botanical Garden in Portland
• Washington Arboreta and Botanical Gardens
  • Washington Park Arboretum, in Seattle
  • Lakewold Gardens, in Lakewood
  • Bloedel Reserve, on Bainbridge Island
  • Yakima Area Arboretum and Botanical Garden, in Yakima
  • John A. Finch Arboretum, in Spokane

For more places to visit, check out the American Association of Arboreta and Botanical Gardens.

PNW Tree Related Sites of Interest

• PlantAmnesty - dedicated to ending the senseless torture of trees.
• Fraser Valley Heritage Tree Society - dedicated to preserving the area's historic trees.
• Oregon Heritage Tree Program - the statewide program to recognize historic trees.
• Oregon Community Trees - a grassroots organization dedicated to promoting urban and community forestry in Oregon.
• World Forestry Center - in Portland, Oregon, home of the talking tree, an excellent museum and tree farm, and some of the finest tree related education events anywhere in the world.
• Friends of Trees - Portland's award-winning non-profit tree planting group
• Pacific Forestry Centre  - British Columbia's resource for forestry information

Technical Tree Care Information Links

• Hazard Tree Web Page (USFS)
• Hazard Tree Management in Alaska
• California Tree Failure Reporting Program
• ISA Consumer Information Series
• Tree Decay: An Expanded Concept
• Common Tree Diseases of British Columbia
• Online Catalog of Western Forest Insects and Diseases
• Landscape Plant Images and Identification