The Giardino Montano per la Conservazione della Biodiversità Ruggero Tomaselli, also known as the Giardino Botanico Alpino Ruggero Tomaselli and the Giardino Botanico Ruggero Tomaselli, is a nature preserve, arboretum and botanical garden in Italy. It is located inside the Cittadella di Scienze della Natura at the summit of the Campo dei Fiori di Varese (elevation ), in the Province of Varese, Lombardy. It is open on weekends in the warmer months.