To boost the overall supply of horticultural produce to the world’s developing cities, FAO promotes the sustainable intensification of commercial market gardening on urban peripheries. In densely populated areas, it has a complementary strategy: to help low-income households improve their food and nutrition security by growing their own vegetables in micro-gardens. “Micro-gardening” is the intensive cultivation of a wide range of vegetables, roots and tubers, and herbs in small spaces, such as balconies, patios and rooftops.