The Rosarium consists of three sections. The modern roses are arranged into groups at Rosovalen. The old-fashioned roses are collected in Rosparken. Rosarkivet contains a collection of roses from the west of Sweden, which are part of a conservation project – Programme for Cultivated Diversity.
Each summer, at the beginning of July when the roses are at their most beautiful, The Garden Society of Gothenburg arranges a rose party with exhibitions, lectures and more.
The Rosarium is run ecologically and pesticides are not permitted to harm humans or animals. Birds are excellent for keeping pests at bay and they are rewarded with attractive bird boxes placed throughout the park.