(See this website’s home page for Horticulture posts and events)
Wisconsin Horticulture Newsletter – What’s Happening in Horticulture?
Wisconsin Master Gardener
Wisconsin Extension Master Gardener Onboarding is an online course for individuals wishing to become a Wisconsin Extension Master Gardener. Joining the program requires you to take a series of two courses.
Course #1 is participating in an approved learning opportunity from the Wisconsin Extension Horticulture Program called ‘Foundations in Gardening’. This course is from September 7, 2025 – December 6, 2025 and is full for 2025.
Course #2 completing Onboarding. 2026 Course Dates are February 16 – March 29, 2026. Early Bird registration is $100, Dec. 9, 2025 – January 15, 2026. Regular registration is $125 from January 16 – February 8, 2026.
Horticulture Calendar of Events and sign up for Newsletter
- Wisconsin Horticulture Division of Extension Calendar of Events – View Calendar of Events for upcoming online programs giving expert advice to help you not only choose the right plants for your space, but also keep them happy and healthy.
Ask Your Lawn or Gardening Question Online Form
Ask Your Lawn or Gardening Question Help Desk – Mondays & Thursdays 1-3 pm
- Speak directly with an Extension Horticulture Outreach Specialist for lawn and gardening advice here.
Ask Your Lawn or Gardening Question LIVE – Wednesdays-once a month for 2026
Learn more and register – see schedule below.
The UW-Madison Extension Horticulture Program is excited to announce the 2026 lineup for Ask Your Gardening Question: LIVE, a FREE webinar series for Wisconsin gardeners. Whether you have questions about plant problems, diseases, insects, or the general care of plants in and around your home, our seasoned panel of experts will share helpful, actionable advice and online resources for you to become a more successful gardener.
There is no cost to attend, but advanced registration is required. You can attend one session or all twelve! Don’t miss this opportunity to connect with horticulture professionals and grow your knowledge!
UW-Madison Division of Extension Horticulture Program – Find articles, resources, educational events and more at hort.extension.wisc.edu
- 1/21/26 | 1:30-2:30 pm | Register Now
- 2/18/26 | 6:30-7:30 pm | Register Now
- 3/18/26 | 1:30-2:30 pm | Register Now
- 4/15/26 | 1:30-2:30 pm | Register Now
- 5/20/26 | 1:30-2:30pm | Register Now
- 6/17/26 | 6:30-7:30 pm | Register Now
- 7/15/26 | 1:30-2:30 pm | Register Now
- 8/19/26 | 1:30-2:30 pm | Register Now
- 9/16/26 | 6:30-7:30 pm | Register Now
- 10/21/26 | 1:30-2:30 pm | Register Now
- 11/11/26 | 1:30-2:30 pm | Register Now
- 12/9/26 | 6:30-7:30 pm | Register Now
UW Plant Disease Diagnostics Clinic (PDDC) provides monthly Zoom talks discussing plant disease-related topics.
Check out the PDDC website for more information and registration. Below is a brief list of talks.
- December 17 – Ten Cool Diseases You Can Learn to Love (and identify by eye)
Horticulture Links of Interest:
Horticulture: Ask Your Gardening Question
UW Horticulture Website and Newsletter
Insects, Diseases & Weeds
- UW Department of Entomology Insect Diagnostic Lab & info sheets
- UW Plant Disease and Diagnostic Lab – includes UW Plant Disease fact sheets
- UW Plant Disease and Diagnostic Lab – Fact Sheet Listing
- Weed Science Society of America
- UW Weed Identification
- UW Invasive Species Wisconsin First Detector Network
- DATCP Wisconsin Pest Bulletin
Plant Varieties
Other Resources
- UW Online Programs and Webinars
- Hardiness Maps
- UW Extension Horticultural Publications – The UW Learning Store
- Wisconsin Department of Natural Resources
- UW Turfgrass Diagnostic Laboratory
- UW Wisconsin Fruit
- UW Vegetable Pathology
- UW Soil and Forage Testing Lab
Articles for Lawn and Garden:
- Diagnosing the Nutritional Status of Fruit Crops
- Lead in Home Garden Soil
- Homegrown Tomatoes for Wisconsin
- Watch: Best Practices for Watering Yards and Gardens
- Rain Barrels for the Home Gardener
- Alternatives to Lawn: Groundcovers
- Common Milkweed Insects
- Is my ash tree worth treating for Emerald Ash Borer?
- What’s All the Buzz? Woody Plants for Bees, Butterflies, and Other Bee-t-full Pollinators
- Planning and Designing Your Home Landscape
- Planting and Managing Your Own Prairie
