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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:

Make an appointment, before coming into the office.

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.

IMGC 2023


Overland Park, Kansas is a vibrant community of greater Kansas City. Constantly ranked by Money Magazine as one of the best places to live and the United States and the according to WalletHub is the best place in America to raise a family. 

Start planning your trip to the Kansas City area and Overland Park. You will find many interesting sites, places to visit and of course we will make sure you see the best gardening places to visit.

Gardens to Visit:





  • Kaufman Garden - Kaufman_gardenNestled in the heart of Kansas City is this delightful everchanging garden.




  • Kansas State Horticulture Research and Extension Center - Winter_vegetables            Extensive research work is being conducted in the area of organic and high tunnel vegetable research. 

K-State Research and Extension Johnson County Master Gardener logo