This article elaborates on the importance of informal seed markets for African family farmers. Using a comprehensive data set with 9660 observations across six countries and covering 40 crops, the authors show that farmers access 90.2 % of their seed from informal systems with 50.9 % of that deriving from local markets. However, current investments are mostly geared towards formal markets instead of informal ones, while the informal sector remains the core for seed acquisition in Africa. »