ACTrees is pleased to highlight opportunities from partner and peer organizations for continuing education, conferences, and training seminars. Attending these events can help ACTrees member organizations:

  • Increase cross-disciplinary knowledge.
  • Build non-traditional partnerships.
  • Expand access to tools and resources.

Check this page frequently for updated learning opportunities throughout the urban greening community. For a full list of events and, in some cases conference proceedings, visit Events Archive.



June 20–21, 2015
Jamestown, Colorado

RETREET is a non profit organization composed of arborists, bicyclists and project managers with the goal of providing disaster relief to stricken communities on a local, national, and international level by leading volunteers in restoring decimated urban forests.

The next RETREET event is June 20–21, 2015 just outside of Boulder, CO, in Jamestown, a community recovering from the aftermath of a severe flood. Join in to ride bikes, plant trees, get to know the local community, and leave a legacy that will last for generations to come!

Livable Communities Through Urban Forestry

August 6–7, 2015
Casey Trees
3030 12th Street NE
Washington, DC 20017

Over two days, attendees will have the opportunity to learn from and discuss with leading experts how proper city planning — including increasing green space — is important not only for environmental reasons but also for human health.


Scouting for Early-Season Landscape Pests and Problems

April 27, 2015 — 4:30pm to 6:30pm
UMass Amherst — Holdsworth Hall
160 Holdsworth Way
Amherst, MA 01003

Kick off the 2015 growing season with hands-on scouting, identifying and even forecasting landscape pests and abiotic problems. Join Randy Prostak, Extension Weed Specialist, Nick Brazee, Extension Plant Pathologist, and Rick Harper, Extension Assistant Professor in Urban & Community Forestry, for a walk through the landscape as they discuss and demonstrate how to put IPM practices to work efficiently and examine some of the most common pest and cultural problems of woody ornamentals.

Social Vulnerability Webinar Series

Wednesday, April 29th, and Wednesday May 6th 2015
12-1pm (Mountain Time)
U.S. Department of Agriculture, Forest Service
240 West Prospect
Fort Collins, CO 80526

This webinar series explores community vulnerability to climate change and how natural resource managers can incorporate social vulnerability assessment into their planning and decision-making.


WCISA Annual Conference & Trade Show

April 27-May 1, 2015
Western Chapter International Society of Arboriculture
31916 Country Club Dr.
Porterville, CA 93257

If one of your goals is to grow your tree business, dig deeper scientifically, expand your community or take an inspiring trip, then Nature and Science of Arboriculture is for you!  Attendees include hundreds of arborists, researchers and business owners who will spend for four days of education in the majestic wilderness of Yosemite.


Desert Horticulture Conference

June 5, 2015
University of Arizona
JW Mariott Starr Pass
3800 W Starr Pass
Tucson, AZ 85745

The Desert Horticulture Conference is the premier annual conference for all members of the southwest green industry: landscape architects, designers, growers, retailers, contractors, maintenance personnel, suppliers, and educators. Presenting timely and research-based information relevant for designing, building, maintaining, and producing plants for urban landscapes in the arid Southwest.


Managing Change in Our Community Forests Conference

June 4, 2015
Oregon Community Trees
Miller Hall at the World Forestry Center in Portland, OR
SW Canyon Road, Portland, OR 97221

Invasive pests, changing climate regimes and increased urban density will cause changes in our urban forests in the coming years. What tools and strategies can managers use today to help our community forests adapt? This one-day conference will provide participants with a toolkit full of possibilities, based on the most recent research in our field. Join your colleagues for a lively discussion of the challenges and opportunities coming to a community forest near you.


State of the Map U.S. 2015

June 6–8, 2015
Open Street Map
United Nations Headquarters
New York, NY 10017

State of the Map US is the annual conference for all OpenStreetMap users. No matter whether you’re entirely new to OpenStreetMap or whether you’re an experienced hand, this conference is for you. This year’s State of the Map US takes place as the OpenStreetMap project enters into its second decade. OpenStreetMap an open data source that is being used by an increasing number of non profits, governments and businesses. The project has grown to almost two million registered users with over 300,000 active mappers, almost 30,000 of whom are logging into the map every month to create one of the best map representations of the world available.


Canopy Connections: Urban Forests for Public Good

March 25, 2015
The Carnegie Institution for Science
1530 P Street NW
Washington, DC, 20005

Canopy Connections is Casey Trees’ annual, one-day conference geared towards industry professionals to discuss pressing urban forestry issues, learn about the latest research being undertaken and connect with other practitioners and those interested in growing and protecting our trees and urban forests.


March 28–29, 2015
Moore, OK

Join ACTrees partner, RETREET, the last weekend in March for their first weekend planting event in Moore, Oklahoma.

RETREET goes to a new state and organizes a weekend to remember with partners Arbor Day Foundation, ACTrees Member The Tree Bank Foundation, City of Moore, and Oklahoma Department of Agriculture, Food and Forestry. RETREETers will plant up to 160 trees, sponsored by ArborGen, at 80 home sites in Moore, OK, in the wake of the EF5 tornado that struck on May 20, 2013, destroying over 1,000 homes and countless trees.