Underneath Sydney's bustling CBD, a group of savvy farmers have designed the city's first underground commercial farm. Four basement levels below the city streets in Barangaroo, in an office tower car park, Urban Green is now the largest vertical farm in Sydney. It features 35 verities of microgreens - seedlings of plants that are usually harvested early before being fully grown.
From pink kale, spicy radish, coriander, basil and cabbage, the vertical garden is controlled almost entirely by artificial means including fans which imitates a light breeze to help the plans grow. Just four years on from when it first began, Urban Green now provides fresh produce to restaurants and chefs around the city.