The garden artist Piet Oudolf, collaborating with the landscape architects GROSS.MAX, created the work »Theatre of Plants«. The concept was based on a conversion of the two former round clarifying tanks. Whereas one tank remains filled with water, for the other Oudolf and GROSS.MAX designed a gyrating, descending, walk-through garden. To this end, the basin was filled with earth and arranged in a horticultural composition of shrubs and grasses. Paths and seating structure the garden into a kind of labyrinth. Oudolf’s choice of plant varieties was guided primarily by aesthetic criteria, taking into consideration their changing conditions through the different seasons of the year. The beds are arranged in clusters, whereby various shrubs and grasses are repeated, but always with one particular plant dominating the ensemble and setting the tone. Through his work with perennial plants Oudolf is associated in gardening circles with the so-called New Perennial Movement, which champions the idea of sustainable garden design. In BernePark this concept also reckons with a regular flow of local visitors keen to witness the ever-changing spectacle of nature in flux.