A modular container for bedder germination and/or storage, comprising three distinct modules which can be assembled according to two distinct configurations, respectively a first configuration related to a step of preliminary storage of the container (10) and a second configuration related to the active step of culture inside the container (10). Of these three modules: a first module is constituted by a first tray (11) for containing the culture medium; at least one through hole (25) is provided in the bottom of the first tray (11); a second module is constituted by a second substantially transparent tray (12); the second tray (12), when assembled in the first configuration, contains the first tray (11), and, when assembled in the second configuration, is inverted over the first tray (11) so that its opening is directed toward the opening of the first tray (11) so as to delimit a germination and culture space (20); passages (21) for ventilation of the germination and culture space (20) are associated with the first tray (1 1) and/or the second tray (12); a third module is constituted by a plate-like element (18) which provides, when assembled in the first configuration, the lid for closing the second tray (12), and provides, when assembled in the second configuration, a pot saucer for the first tray (11).