Growth and reproduction data of sessile oak forests (Quercus petraea) distributed along a gradient of elevation (French Pyrenees - in situ) and in a common garden experiment (Toulenne, France).

This dataset describes the mean annual fructification, the mean seed mass and the mean increment in height and diameter of sessile oak populations (Quercus petraea) from two experimental designs: (1) along a gradient of elevation situated in the French Pyrenees and (2) within a common garden experiment situated at the Experimental Unit of Toulenne (France). Reproductive traits have been monitored during 6 years (from 2014 to 2019) for both designs.