The work was carried out in mixed, uneven aged forests of Picea abies, Abies alba and Fags sylvatica in the French Alps and Jura mountains. This dataset contains raw data files about observations made to calculate regeneration densities, annual height growths, and environmental variables that could potentially impact regeneration. We also include another data file which has a consolidated sheet of all measured and calculated data values that were used for analyses. This includes data from a climate model called SILVAE, with values extracted for our field sites.