The present invention relates to a rollable strip (1) for the out-of-ground cultivation of plants as well as to an associated growth device and installation, and such that according to the invention, the rollable strip (1) comprises a first wall (2), referred to as an inner wall, that is capable of allowing nutrient fluids to pass through, a second wall (3), referred to as an outer wall, that is capable of controlling evaporation, attachment means (4) that are capable of allowing the strip to be attached to a vertical growth device and means (6) for receiving plants in the form of seeds or sprouts.La présente invention concerne une bande enroulable (1) pour la culture de végétaux hors sol ainsi qu'une installation et un dispositif de croissance associés, et tel que selon l'invention, la bande enroulable (1) comprend une première paroi (2), dite interne, apte à laisser passer les fluides nutritifs, une seconde paroi (3) dite externe apte à contrôler l'évaporation, des moyens de fixation (4) aptes à permettre la fixation de la bande sur un dispositif de croissance vertical et des moyens de réception (6) de végétaux sous forme de graines ou de pousses.