The Botanical garden has an indoor Sakura Tree, a fountain, numerous plants and a flower shop and coffee corner. It is a modular, the roof with ventilators can be removed. The statue on the front is Persophone, goddess of the springtime, flowers and vegetation. Also goddess of the underworld, (wife of Hades) but that's less relevant in this context :). She holds a sistrum (musical instrument).
Free building instruction, parts list and PDF for sign sticker available on rebrickable: