Horticulture

Horticulture Calendar of Events

Wisconsin Horticulture Division of Extension Calendar of Events

Horticulture and Agriculture Websites

Horticulture and Agriculture Websites

Wisconsin Master Gardener

Wisconsin Master Gardener Program and Upcoming Events
2025 Master Gardener Onboarding – The 2025 course has ended. Check back in 2026 for new dates.

Horticulture Links of Interest

Insects, Diseases & Weeds

UW – Department of Entomology Insect Diagnostic Lab & info sheets
UW – Plant Disease and Diagnostic Lab – includes UW Plant Disease fact sheets
Weed Science Society of America
Weed Management
Garden Pests
Invasive Species Wisconsin First Detector Network

Plant Varieties

Other Resources

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Events and Programs

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.

May 18 – The Science (and Art) of Plant Disease Diagnosis
June 25 – Vegetable Diseases
July 23 – Diseases of Herbaceous Ornamentals
August 27 – Deciduous Tree and Shrub Diseases
September 24 – The Bad and the Ugly: Ten Plant Diseases Not to Compost
October 22 – Diseases of Houseplants
November 19 – Diseases of Evergreens
December 17 – Ten Cool Diseases You Can Learn to Love (and identify by eye)

UW Madison Extension Horticulture Program ‘Ask Your 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.

4/2/25 Register Now
5/19/25 Register Now
6/23/25 Register Now
7/21/25 Register Now
8/18/25 Register Now
9/22/25 Register Now
10/20/25 Register Now
11/17/25 Register Now
12/15/25 Register Now

Horticulture Learning Opportunities

View Calendar of Events for upcoming online programs and our collection of houseplant articles giving expert advice to help you not only choose the right plants for your space, but also keep them happy and healthy with gardening inspiration to get you through winter.