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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.


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Make a donation

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


Meet your Horticulture Team and Contact Us


Anthony Reardon
Horticulture Agent

Tom Good
Horticulture Assistant

Mary Matthew
Extension Master Gardener Coordinator

Heather Cwach
Horticulture Office Professional