The Gessner garden shows 50 medicinal plants (herbs and shrubs), used by 16th century's healers, each with a citation of a healer from that period, such as Cynara cardunculus, Potentilla erecta, Linum usitatissimum, Paeonia officinalis, Silybum marianum, Juniperus communis, Fragaria vesca, Artemisia absinthium and more.