Master Gardeners Plant Sale Saturday, May 20th 7:30 a.m. - 10:00 a.m. DeKalb County Fairgrounds Exhibit Hall (708 S. Union St., Auburn) Many varieties of perennials - some annuals. *Proceeds go toward Master Gardener Scholarship Master Gardeners Plant Sale Saturday , May 20th 7:30 a.m. - 10:00 a.m. DeKalb County Fairgrounds Exhibit Hall ( 708 S. Union St. , Auburn ) Many varieties of perennials - some annuals . * Proceeds go toward Master Gardener Scholarship