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OSU Extension

College of Food, Agricultural, and Environmental Sciences


We serve home gardeners by answering their gardening questions, teaching at garden club programs, and by offering the internationally known Master Gardener Program. Our goal is to enhance positive experiences of home gardeners.

Master Gardener Volunteer Program

Our Master Gardener Program was started in 1992. The Master Gardener training course consists of a minimum of 50 hours of instruction. An equivalent number (50) of horticultural significant volunteer hours within 1 year following the initial instruction is required to become a certified Master Gardener. We have trained over 1,000 Master Gardeners. Our Master Gardener volunteers have been involved in a wide range of horticulture endeavors, from providing educational outreach programs at the Krohn Conservatory, to evaluating new plants at the Cincinnati Zoo and Botanical Gardens as well as numerous other projects. For more information click here

Ask a Master Gardener Icon

Submit your landscape, yard, and garden questions by clicking the Ask a Master Gardener icon above. Please provide as much detail as possible. You can submit photos if relevant to help us answer the question.


Soil Testing

OSU factsheet - Soil Testing for Ohio Lawns, Landscapes, Fruit Crops and Vegetable Gardens

C. Wayne Ellett Plant and Pest Diagnostic Clinic

The C. Wayne Ellett Plant and Pest Diagnostic Clinic is a diagnostic facility specializing in the identification of plant diseases, plant health issues, and insect-related problems.


Sustainable Landscape Systems for Managing Storm Water 2nd Edition