Welcome! We hope you enjoy exploring The Gardens online and that when you have the opportunity you'll come for a visit. Our gardens are in a constant state of change; with seasonal variations, new installations, classes, and special events…there is always something to see at The Gardens at SIUE! The Gardens at SIUE is a 35-acre public botanical garden on the campus of Southern Illinois University Edwardsville. Recognized by the Missouri Botanical Garden as a Signature Garden. The Gardens currently includes natural areas, gardens, and sculpture arranged in a landscaped setting.