What We Do


Region: Chicago, Illinois


Since 1991, more than 1,500 trained volunteers have provided “eyes and ears on the ground” year round in neighborhoods all over Chicago to spot improper planting, vandalism, insect infestation, and other problems.

What do TreeKeepers do?

TreeKeepers learn how to help keep trees green and growing. TreeKeepers volunteer in a variety of situations from street tree care and tree planting to woodland stewardship.

Why do TreeKeepers do this?

TreeKeepers are passionate ambassadors who help educate their neighbors as well as their public officials about the importance of trees for the greater good.

How do I become a TreeKeeper?

The Openlands TreeKeepers Program takes place twice a year in Chicago and once a year at both The Morton Arboretum and Brushwood Center in Ryerson Woods. The Chicago program is hosted at different locations each time to make our way around the city.

What is the TreeKeepers Program?

The TreeKeepers Program is an 8-day course with classroom and field components. Lessons are taught by nationally and world-renowned experts focused on managing and reducing the threats to forest health. Some of the topics covered include tree biology, soils, tree identification, pruning, tree selection, planting and mulching, and pests and diseases. The College of Education at Aurora University will also offer two undergraduate or graduate credit hours for an additional fee.

What do I need to do to become a certified TreeKeeper?
  • Attend all 8 classes (missed classes may be made up at a subsequent series)
  • Pass a written exam
  • Complete practical exams on tree planting, mulching, and pruning
  • Pledge 24 volunteer hours within the year following graduation
  • Have fun while learning about the urban forest!

For more information, please contact trees@openlands.org.

Visit the Trees page to learn about Openlands' tree care and planting events.

Support for Openlands' TreeKeepers Program is generously provided by:

Bartlett Tree Experts

The Boeing Company

The Richard H. Driehaus Foundation

NIB Foundation

The Siragusa Foundation

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