On rooftops and in tunnels, city farms lead food revolution – London, UK

In an old World War II bunker in South London, 108 feet below Clapham High Street, fennel, purple radish and wasabi shoots are being grown. The Growing Underground supplies herb and salad mixes – pea shoots, garlic chives, coriander, rocket, red mustard, basil and parsley – to Marks & Spencer, Waitrose, Ocado, Whole Foods and Planet Organic, as well as restaurateurs including Michel Roux. This experience is being highlighted at two exhibitions this year: Roca London Gallery’s investigation into “agritecture”, London 2026, which opened on Saturday, and the V&A’s Food: Bigger Than the Plate in May, which will also showcase micro-farming methods such as Grocycle’s hanging mushroom bags.