(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 – Mondays-once a month
- Join our monthly online programs in 2025 for an opportunity to connect with plant health experts from the UW-Madison Division of Extension. Each session, held on Mondays at 1:30 p.m., is your chance to ask questions about your trees and shrubs, garden vegetables and ornamentals, and lawn. Whether it’s about plant diseases, pesky insets, or the selection and general use of plants in and around your home, our panel of seasoned experts will provide you with insightful answers. Don’t miss out on this opportunity to cultivate your knowledge and keep your plants thriving.
- 12/15/25 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?
