Silver fir (Abies alba Mill.) is a shade tolerant European conifer, distributed across temperate mountain areas (e.g. in France: Pyrenees, Massif Central, Alps, Jura, Vosges, Montagne de l'Aigle), at moderate elevations between 300 and 1800 meters above sea level. This monoecious, wind-pollinated species is self-compatible and has a mixed mating system, although it passively avoids self-fertilization (geitonogamy): female strobili (i.e. cones) are located within the top third of the crown, whereas male strobili (catkins) are located within the bottom two thirds of the crown. The dataset includes male and female reproductive yield (pollen and cone production), tree location, density, height, circumference and crown shape and quality of seeds (filled versus empty seeds and selfing rate) on 146 silver firs from two mountains in the south-eastern French Alps, Ventoux and Lure, monitored over a period of four years (2002-2005). The data can be used to test the effect of environmental drivers on selfing and female reproductive success and shed light on the evolution of mixed mating in plants. The data are in file "Data_selfing" and the description of the dataset contents is in file "MetaData_Selfing_En" for English version of the metadata and "MetaData_Selfing_Fr" for the French version.