Pierre Restany on Hundertwasser's Tree tenant initiative in Milan
A year later , this time in Milan, Hundertwasser again tried to put this thesis across. Having been invited by Giulio Macchi to participate in “Arte Città” (city art) as part of the Milan Triennial, Hundertwasser submitted his “inquilino albero” (tree tenant). Hundertwasser had 15 trees, roots and all, lifted up to fifteen flats on Via Manzoni and planted them so that they stuck out into the street. Without heeding the risk of breaching the borders of the decorative and despite the indifference of most of the passers-by, Hundertwasser had achieved his aim of demonstrating the thesis of window right and tree obligation in the centre of a metropolis.