A few days ago I emerged from Lille eurostar station and stepped into one of the most interesting parks in Europe. Completed in 1995 as part of the vast Euralille project, Parc Henri-Matisse combines an expansive open field with a raised island at its centre. The eight hectare park was designed by the French horticulturalist and landscape architect Gilles Clément, who has been at the forefront of recent attempts to include the spontaneous dynamics of nature in urban landscapes. Since the 1970s Clément has been studying the aesthetic and scientific characteristics of spontaneous ecological assemblages such as fallow land to explore how these “gardens in movement” might be incorporated into the design of parks and gardens. A key concept he has advanced is that of the “third landscape” which includes all those spaces that lie outside of cultivation or direct human use and are often important for the maintenance of biodiversity. In Parc Henri-Matisse the idea of the “third landscape” has been put into practice through the creation of an artificial island that will serve as a long-term refuge for urban biodiversity. Clément has named this structure Derborence Island after a fragment of primary forest in Switzerland that has survived virtually intact over thousands of years because of its remote location. Similarly, in Parc Henri-Matisse the central island has been made completely inaccessible like a vast sculpture or enigmatic monument. The oddity of this overgrown concrete block has not been without its critics, however, who have derided its presence as a form visual intrusion that is antithetical to conventional conceptions of public space.
My impressions of the park in blazing May sunshine are that it is quite heavily used, especially by young people, couples and people on their own. The concrete island is surrounded on two sides by a semi-wild landscape of trees and small clearings, which provide a lush contrast with the more open formality of the grassy expanse to the south. The question whether the island really does serve a direct role in maintaining urban biodiversity is not yet certain and its purpose is perhaps more symbolic than ecological. If over time, however, a unique ecological assemblage really does emerge on top of this concrete plinth then perhaps the cultural and scientific aspects to the park’s design will begin to elide more closely. In fact, this may already be happening: just below the island I stumbled across a rare beetle, the bee-mimicking Trichius zonatus, that may conceivably be among those creatures whose urban presence is now being sustained by Derborence Island.