It is a pleasure to have a green wall in Trafalgar Square this summer, to cover some scaffolding. The green wall was sponsored by GE and the National Gallery, as part of its Carbon Plan. It was designed by landscape architect Shelley Mosco. It is based on Van Gogh’s Wheat Field with Cypresses (below left). Shelley’s planting design (below right) uses pointillist planting blocks for texture. The wall has 36 different species in 250x500mm modules, each containing 14 cells of 125x76mm). The living green wall is 4.8m x 7m and has over 8000 plants. Shelley is also interested in living green walls made with native plants,using a GIS system to guide plant selection for particular localities.