Dane County Extension Horticulture

The Dane County Extension Horticulture program provides research-based gardening information, services and resources to Dane County residents so they can keep their plants healthy while protecting the environment.

Local Horticulture Programs

Classes and Presentations

Offering online and in-person classes accessible to both the public and green industry professionals, designed to enhance gardening knowledge and skills.


The Horticulture calendar offers upcoming program details.

Answers to Gardening Questions

The Horticulture Helpline and Horticulture Educator are both resources to help with garden problems online, by email, by phone, walk-in advice/ID service appointments.

Dane County Extension Teaching Garden

The Teaching Garden is a public educational resource surrounding the Dane County Extension Office building.

Community Horticulture Programs

Dane County Tree Board, Tree Canopy Collaborative and Heritage Oaks Project

The Dane County Tree Board is composed of members in different tree-related disciplines and appointed by the County Executive to bring information and public education.

Answers to Gardening Questions

*During especially busy times of the year, responses may take a few days*

  • Services
    • Email photos for plant, weed, disease and insect ID
    • Recommendations for garden areas
    • Recommendations to manage garden issues such as diseases
    • Info and contacts

Further Resources and Lab Services

Lab LinksInsect Diagnostic Lab
Plant Pathology (Plant Disease Lab)
UW Soil and Forage LAB
Turfgrass Diagnostics Lab
Gardening PublicationsUW-Extension Horticulture
UW-Extension Horticulture Learning Store
DNR website infoDepartment of Natural Resources
Plant Native Plants to Help Nature
Rain Gardens
Spongy Moth
Soil Testing The UW Soils Lab

Meet the Educator

Lisa Johnson grew up in Madison’s southwest side. Lisa’s mother and grandfather were avid gardeners, and her love of plant life was encouraged by high-school biology teacher Marilyn Hanson. Lisa earned her undergraduate degree in Horticulture at UW-Madison and worked at various local garden centers and nurseries before returning to the UW for a graduate degree in Agricultural Communications. She started her Cooperative Extension career first in Milwaukee County before returning to Dane County. Lisa started the Teaching Garden at Dane County UWEX in 2004 as an outdoor classroom for master gardeners, children and the general public. When not gardening, she enjoys playing folk music on guitar, autoharp and bowed psaltry and sharing quality time with her cats.

Contact Lisa at :

Lisa Johnson, Horticulture Educator 

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