Plant Diagnostics | The Step-by-Step Approach to Identifying Plant Problems | Feb. 1-April 30, 2026

100% Online and Self-Paced. For more information and to register. Registration closes this week – Thursday, January 29!

Want to get better at troubleshooting problems in your landscape and garden? Plant Diagnostics: The Step-by-Step Approach to Identifying Plant Problems is an online course designed to introduce you to the process of plant diagnostics. Learn the process for identifying plant problems in your own trees, landscape and garden and be prepared for the next growing season! This course explains the basics of the plant diagnostic process in an easy-to-understand way. At the end of the course, you’ll be able to 1) Explain the steps of the diagnostic process, and 2) Identify appropriate resources to use in the diagnostic process.

After you’ve finished this course, we hope you feel empowered to attempt diagnostics with your own plants using the framework you’ll learn in this course, accessing the resources we’ll share with you, and using UW-Madison Division of Extension Diagnostic services and labs for extra help when you need it.

Not sure if this course is right for you? Take a closer look at the Course Snapshot to see what the course entails. Contact gardening.class@extension.wisc.edu if you have specific questions about the course. Plant Diagnostics is only offered once per year so register now and take your gardening knowledge to the next level!