Horticulture Barn – UGA 4630 (1960, Category 2). The Horticulture Barn, not to be confused with the Main Barn, is a small rectangular concrete block structure with a gable roof. The end gable is clad in siding, and the roof in modern metal. The building’s windows are metal each with four horizontal jalousie sash. The building retains integrity and is assessed as Category 2.