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Johnson County

Research-based Information You Can Trust — Localized for your needs

Johnson County
11811 S. Sunset Drive
Suite 1500
Olathe, KS 66061

Office Hours:

Monday - Friday,
8:30 a.m. - 5 p.m.

(913) 715-7000
(913) 715-7005 fax
jo@listserv.ksu.eduMap to our office

Kansas State University is committed to making its services, activities and programs accessible to all participants. If you have special requirements due to a physical, vision, or hearing disability, contact Johnson County K-State Research and Extension, 913-715-7000.

Kansas State University Agricultural Experiment Station and Cooperative Extension Service

K-State Research and Extension is an equal opportunity provider and employer.

Extension Master Gardeners

Extension Master Gardener (EMG) is an educational volunteer program sponsored by K-State Research and Extension.

EMGs come from all walks of life but their common bond is a love of gardening and sharing information throughout the community. EMGs receive a basic training in the disciplines of horticulture. They then volunteer in projects to help Extension promote its educational mission.

Educational Projects include:

Mission Statement
Johnson County K-State Research and Extension Master Gardeners volunteer to preserve and beautify the environment and improve the quality of life in the community by providing current research-based horticultural information to the public. EMGs promote horticultural practices, sustainability, and environmental initiatives supported by K-State Research and Extension. The organization embodies the horticultural education objectives of the Johnson County Extension Council cooperating with Kansas State University and the United States Department of Agriculture.



Learn more about the International Master Gardener Conference in 2023. 



2018 Extension Master Gardeners Statistics:

Extension Master Gardeners (EMG):

  • Total number of volunteer hours: 54,758 hours
  • Our donated/volunteer time is equivalent of 26 full-time employees
  • Value of volunteer time = $1,352,000 

Vegetables Donated to Food Pantries: 

  • 4,000 + pounds (2 tons) of fresh produce
  • Our donated food is equivalent to 12,000 servings of fresh fruits and vegetables for local families in need. 

 EMG contacts with the public (thru classes, gardens, hotline calls, etc):

  • 57,064 people 

 Book cover for Untangled

Purchase Untangled: Straight Talk from Passionate Gardeners

written by our Extension Master Gardeners

Contact Us

Dennis Patton
Horticulture Agent

Tom Good
Horticulture Assistant

Karen Bailey
Extension Master Gardener Coordinator

For Members Only

EMGs, click on the above link to log-in.