Ask Your Gardening Question: LIVE

These free online Q&A sessions offer a chance to hear experts’ advice on trees and shrubs, homegrown fruits and vegetables, indoor plants, flowering ornamentals, lawns, and other plant- or pest-related questions you may have.

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.

2026 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.