In many regions where N2Africa works, farmers need to plant soyabean at the beginning of the growing season in order to have a mature crop by the time the rains cease. The humid tropics covering most of Sierra Leone and Liberia however are blessed with a rainy season of at least 7 months and a total annual rainfall often well over 2000 mm. Results from a planting date trial conducted in Sierra Leone in 2012 however indicated that the long growing season does not mean that farmers have a long window to plant soyabean.