Preschoolers in the Garden: Let's Learn About Ohio's Native Plants! What’s growing in your backyard? Is it native to Ohio? Join OSU Master Gardeners to learn about some of Ohio’s top native plants. We will research our state’s most common green things and engage in age-appropriate activities. For ages 3-6 with an adult companion. Some or the entire program may be held outdoors so please dress accordingly. Register by January 15. There is a $5 program fee.