Free Online Gardening Programs

View our lineup of free online gardening programs — and participate from any device! Program topics are suitable for gardeners of any skill level.

Growing and Caring for Plants in Wisconsin:

Foundations in Gardening

This online, self-paced course introduces you to key concepts about gardening, from trees to houseplants to vegetables (and everything in between!). The course also serves as an approved learning opportunity to join the Wisconsin Extension Master Gardener Program.

Plant Diagnostics

The Step-by-Step Approach to Identifying Plant Problems

Learn the process for identifying problems on plants in and around your home! This course, offered annually at the beginning of each year, explains the basics of the plant diagnostic process in an easy-to-understand way.

2025 Plant Disease Talks

Hosted by the UW Plant Disease Diagnostics Clinic

Each month, the UW Plant Disease Diagnostics Clinic hosts a Zoom presentation covering a timely plant disease topic. These talks are free and open to the public.

Online Program Archive

Explore our collection of recorded horticulture webinars, covering general gardening practices, houseplants, pollinators, weeds, pests, and more. Learn from experts at your own pace with accessible, research-based information for gardeners of all skill levels.