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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

Map to our office

K-State Research and Extension is committed to making its services, activities and programs accessible to all participants. Reasonable accommodations for persons with disabilities may be requested by contacting Johnson County Extension at (913)715-7000. Notify staff of accommodation needs as early as possible.

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.

2022 Extension Master Gardener (EMG) Annual Statistics

  • Total on Roster: 515
  • Volunteers submitting Hours: 437
  • Total Number of Hours: 53,204
  • Average per EMG: 121
  • FTE (Full Time Employees) equivalent: 25.3
  • Value of volunteer time @$29.95/hour = 1,593,459.00 (2022 Independent Sector)

Fresh Fruit and Vegetable Donations

Total Amount of fresh vegetables and fruit DONATED 4746.3 lbs to local food pantries. 

Backyard Garden donated 3,465 lbs, Deanna Rose Children’s Farmstead donated 985 lbs, Shawnee Indian Mission donated 200 lbs and West Flanders donated 96.3 lbs of fresh vegetables and fruits to local food pantries. 

 Contacts: EMG contacts with the public

  • Community Outreach: 1,200 (estimated)
  • EMG Contacts: 14,327 self-reported from website
  • Hotline: 4,465 contacts
  • JMG Program School: 127 students (5 schools, plus Girl Scout project)
  • Speakers Bureau: 40 presentations reaching 644 attendees; with $1,070.00 honorariums received for presentations
  • Wildlife Habitat Committee: 1500 (estimated)
  • Total contacts = 22,263


2021 Extension Master Gardner Annual Statistics

Extension Master Gardeners (EMG)

  • Total on Roster: 492
  • Volunteers submitting Hours: 412
  • Total Number of Hours: 46,107
  • Average per EMG: 112
  • FTE (Full Time Employees) equivalent: 22.10
  • Value of volunteer time @$28.54/hour = $1,315,894

Vegetables Donated

  • 5040 pounds of fresh produce = 15,120 servings of fresh fruits and vegetable from demonstration gardens to those in need (1 pound = 3 servings). Deanna Rose1129 lbs, Shawnee Indian Mission (SIM): 710 lbs and Backyard Garden (BYG): 3201 lbs
  • Food Pantries Receiving Food Donations
    • Catholic Charities
    • Free Hot Soup
    • Mission Southside, Olathe
    • New Hope Presbyterian Church
    • Overland Park Christian Church
    • Roeland Park Methodist Church
    • Village Presbyterian Food Pantry

Contacts: EMG contacts with the public

  • Community Outreach: Committee Not active due to Covid
  • EMG Contacts: 20,733 self-reported from website
  • Hotline: 4,300 contacts
  • Junior Master Gardener (JMG) Program School: 42 youth, 3 of the 5 programs not active due to COVID
  • Speakers Bureau: 41presentations reaching 1,514 attendees in the community with $755 honorariums.
  • Wildlife Habitat Committee: 1200
  • Total contacts = 26,275

Make a donation

Support the work of the EMG volunteers and their mission of education.


Book cover for Untangled

Purchase Untangled: Straight Talk from Passionate Gardeners

written by our Extension Master Gardeners

Contact Us


Dennis Patton
Horticulture Agent

Anthony Reardon
Horticulture Agent

Tom Good
Horticulture Assistant

Mary Matthew
Extension Master Gardener Coordinator

Heather Cwach
Horticulture Office Professional

For Members Only

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