The Farmer Field School (FFS) is a process of group-based learning originally developed by FAO in the late 1980s to promote Integrated Pest Management (IPM) in Asian rice fields. At field schools, farmers were able to deepen their knowledge of agroecology, particularly the relationship between insect pests and beneficial insects, and adopt practices that reduce the use of pesticides and improve the sustainability of crop yields. A more recent development is the application of the FFS concept to urban and peri-urban horticulture. In fact, research on field schools in urban settings is still very limited. But evidence suggests that FFS can be effective in enhancing urban vegetable growers’ skills and knowledge, and improving the quantity, quality and safety of horticultural produce, provided it takes into account characteristics that distinguish UPH, and UPH practitioners, from their rural counterparts.