Adult Programs

Invasive Species (on demand)

Learn to identify and manage the most common invasive plants in the Great Lakes region. 

Content Detail

Learn to identify and manage the most common invasive plants in Illinois, Wisconsin, Michigan, and other states in the Great Lakes region. Managing invasive plants is one of the most common restoration tasks. In this online training you will:

  • learn to define what makes a species invasive;
  • identify the characteristics of common invasive plants such as European buckthorn, garlic mustard, bush honeysuckle, and more;
  • describe their impacts on the landscape;
  • discuss invasive plant ecology, and;
  • learn which invasive species management methods are best suited to each plant.

In this online class, the self-guided material can be completed anytime, wherever you have access to a computer, at your own pace.

How Self-Paced Online Classes Work

To access the class, you will log into TreeLearning, the Arboretum’s online learning portal. Instructions for accessing TreeLearning will be sent to registrants by email from upon registration. You have access to the course for 60 days and can complete the materials anytime.

Complete the self-paced e-learning modules with reading material, short videos, interactive activities, and quizzes to check your understanding.

The course will take approximately 90 minutes. The online materials do not need to be completed in one sitting.

There will not be an instructor online with you.

Course number: W030-OD


Mary Zaander

Mary Zaander works to restore native ecosystems at Witness Tree Native Landscapes as owner and manager, her vocation for 22 years. Her ecosystem education began as a volunteer in the late 1980s, continued with a Master’s degree from Northeastern Illinois University and is ongoing today both professionally and as a volunteer.

What to Know

This class is held entirely online and is available within one hour of registration.

The online materials will take approximately 90 minutes to complete. Materials can be completed at your own pace.

Participants will have access to online materials for 60 days after the course start date.


Participants must have access to the internet and know how to use a web browser (ex: Chrome, Safari, Internet Explorer).

Participants must know how to send and receive email.

A unique email address for each participant is required at registration.


Basic Plant ID (W100) or previous experience with plant identification recommended.

Continuing Education

This class fulfills a requirement for the Natural Areas Conservation Training (N-ACT) Program. Learn more about N-ACT.


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