Over 120,000 Japanese commuters pass through the JR Tokyo Station daily. The hundred meter long “Rainbow Wall” is on a 2nd story outdoor walkway and was completed in November 2013. After testing many varieties, they chose Heuchera ‘Lime Rickey’, ‘Plum Pudding’, ‘Lipstick’, ‘Fire Chief’ and ‘Caramel’. Concept and tissue culture material from Gert Pezij of GP Plants with development and liners for trial from Jardin Shinohara. Construction and maintainance by Seibu Zouen, Greenwall system and special “Excel Soil” from Minoru Sangyo. (photos taken May 1, 2014 by Ken Brown, Yukihiko Higuchi)