the orto botanico dell'università di modena e reggio emilia, also known as the orto botanico di modena or formerly hortus botanicus mutinensis, is a botanical garden operated by the university of modena and reggio emilia. it is located next to the garden ducale (public gardens), at viale caduti in guerra 127, modena, italy, and open weekdays during the warmer months except august. admission is free.