The Ohio State University Extension Master Gardener Volunteer Program provides intensive training in horticulture to interested Ohio residents, who then volunteer their time assisting with educational programs and activities for Ohio residents through their local OSU Extension county office. Volunteers are not required to have gardening skills or knowledge; but a passion for learning about gardening and sharing this knowledge with others is a must!

Working with county Extension personnel, Master Gardener Volunteers provide such educational services to their communities as: answering gardening questions from the public; conducting plant clinics; gardening activities with children, senior citizens, or disabled persons; beautifying the community; and developing community or demonstration gardens.

New in 2026!

The Ohio State University Extension Mercer County Office invites individuals with a passion for gardening to apply for the Master Gardener Volunteer Program. Training will be offered through the Mercer County Extension Office in Celina, with classes beginning in Fall 2026. To learn more, join us for an informational meeting on Wednesday, June 24 at 6:00 PM at the Mercer County Agricultural Center, 4978 Mud Pike, Celina. This session will cover the benefits, expectations, and requirements of becoming a Master Gardener Volunteer. This event is part of the long-standing monthly Lawn and Garden Talk series, which provides free educational programs on a variety of horticulture topics for area residents.

Discover more about state-level Master Gardener Volunteer programs and activities at http://mastergardener.osu.edu.