The proposed invention relates to a modular structure that can be conveniently used in the field of nursery gardening. Said structure, in use, can recreate in any season the optimal environmental characteristics for the plants and flowers being cultivated. The structure allows to create an optimal natural habitat and minimizes the consumption of energy used in function of the growth stage of the cultivated plant. The scope of primary use of the solution is that of greenhouse crops or functionally equivalent scopes of floriculture and horticulture products, and the like. The modular structure is suitable to adequately exploit spaces of varied shapes and sizes. The base module of said structure consists of a frame on which is anchored a movable roof (5) below which are placed the crops to be produced. Said movable roof (5) is able to vertically translate as the cultivated crops grow in height, thereby minimising the volume of air to be conditioned. This result is achieved, for example, thanks to a laser lever detection system (16) used for detecting the progressive growth of the cultivated plants and to a corresponding mechanism for automatic translation that allows the movable roof (5) to rise sufficiently and in correspondence with the crops growth detected by said laser (16). The movable roof (5) also includes diffusion vents (7) and recirculation vents (6) to allow the conditioning of the volume under the roof (5) itself or only the space intended for the plants growth instead of the entire environment that hosts the modular structure.La présente invention concerne une structure modulaire qui peut être utilisée de manière pratique dans le domaine des pépinières. Ladite structure, lors de l'utilisation, peut recréer dans n'importe quelle saison les caractéristiques environnementales optimales pour les plantes et les fleurs cultivées. La structure permet de créer un habitat naturel optimal et de réduire au minimum la consommation d'énergie utilisée en fonction de l'
