Cleveland County Cooperative Extension


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The Cleveland County Cooperative Extension Service is dedicated to bringing you the latest research-based information for your lawn and garden.

Click here for more information on the 2019 Cleveland County Master Gardening Training.

For answers to any of your horticulture questions, call one of our on-duty Master Gardener volunteers Monday - Friday, 8:00 - 4:00 p.m. at (405) 321-4774 or email at

Want to learn more about gardening, but don't have the time for the Master Gardener program? Check out our 2019 Summer Gardening Series!

Search the OSU Fact Sheet library for in depth information concerning growing and gardening.


Soil and Water Testing Soils, Water & Forage Analytical Laboratory - Price List

A routine soil test can prevent a "shot in the dark" concerning fertilizer applications and pH.  General soil tests consist of 15-20 core samples per location, each core going 6-8" deep, minus any debris (ex: turf from the soil surface, rocks, or mulch).  The cores should then be combined and mixed to get a good representative sample of your specific location.  One quart of soil is an adequate amount to submit for analysis. Soil probes, to assist in the sampling process, are available for checkout from the extension office.  Routine soil samples are $10 per sample (cash or check) and can be dropped off at the Cleveland County Extension Office, 601 E Robinson, Norman, Oklahoma. 


We can also test soil salinity, manures, compost, hay, and forage.  For more information see the price list or contact our office at (405) 321-4774.


Becoming a Master Gardener
The Master Gardener (MG) program is a volunteer organization dedicated to helping the community with horticulture issues, through the Cooperative Extension Service.  The MG Training Course is designed to provide education and technical training to persons interested in learning about plants and how they grow.  In addition, MG trainees have an interest in joining the volunteer group--the Cleveland County MG Association. Requirements include completing the Master Gardener classes, which consist of approximately 56 hours of training from OSU State and County Horticulture Specialists.

After completing the Master Gardener classes, you must complete 60 hours of service to become certified.  Service hours are supervised by the Cleveland County OSU Extension Service office and include 48 hours at the Master Gardener desk and 12 hours working in the Demonstration and Teaching Garden.  Each spring the trainees begin work in the extension office answering general lawn and garden questions for the public.  This training is a wonderful way to learn and share knowledge with the community.  A new class begins in the Fall of each year.


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