Glennville’s biggest annual event — the Glennville Sweet Onion Festival — is a festive day on the second Saturday of each May celebrates the harvesting of the famous Vidalia sweet onion crop.

The day begins with a sweet onion run and walk and a downtown parade. Then on to the State Farmers’ Market on Highway 301 South for an array of arts and crafts, delightful entertainment, children’s rides and games, delectable food (that includes fried sweet onion rings and blooming onions). The event draws over 6,000 people each year.

Tattnall County, of which the community of Glennville is the largest, grows more Vidalia Sweet Onions than any of the other official Georgia Department of Agriculture Vidalia Sweet Onion growing counties, contributing approximately half of the entire state crop each year.