An apparatus for the automation of hydroponic cultivation and/or the drying of plants, wherein the apparatus is adapted to be connected to an environment for the positioning of plants and the hydroponic cultivation and/or the drying thereof having a cultivation chamber, while remaining outside the environment, which apparatus comprises a containment casing which contains at its inside: - an upper air conditioning unit having a conduit for withdrawal of the air to be conditioned and a delivery conduit for the conditioned air, said conduits (5, 6) being associated with means for the air recirculation and being adapted to be placed in fluid communication with the cultivation chamber to define, in use, a closed cycle; - a lower water treatment unit provided with water pumping means having a collection tank of the water to be treated with an inlet pipe of the water coming from the cultivation and/or drying external environment and a delivery pipe of the treated water to the cultivation and/or drying external environment; wherein said upper air conditioning unit comprises air conditioning means (10, 14) for cooling and dehumidifying the air and air heating means adapted to be operated in a combined and/or selective manner to vary the temperature and/or humidity parameters of the air to be sent to the external environment; wherein said lower water treatment unit comprises water conditioning means (31, 32) for conditioning the water collected in said tank, dosing means (40, 42) of manuring and/or fertilizers and/or nutrients substances in said tank, means (40, 42) for regulating the chemical and/or physical parameters of the water collected in said tank; characterized in that said air conditioning means comprise a first evaporator having a first cylindrical jacket closed at the ends to define a first collection chamber of the air to be conditioned provided with an opening for the connection of said withdrawal conduit. - an upper air conditioning unit having a conduit for withdrawal of the air to be conditioned and a delivery conduit for the conditioned air, said conduits (5, 6) being associated with means for the air recirculation and being adapted to be placed in fluid communication with the cultivation chamber to define, in use, a closed cycle; - a lower water treatment unit provided with water pumping means having a collection tank of the water to be treated with an inlet pipe of the water coming from the cultivation and/or drying external environment and a delivery pipe of the treated water to the cultivation and/or drying external environment; wherein said upper air conditioning unit comprises air conditioning means (10, 14) for cooling and dehumidifying the air and air heating means adapted to be operated in a combined and/or selective manner to vary the temperature and/or humidity parameters of the air to be sent to the external environment; wherein said lower water treatment unit comprises water conditioning means (31, 32) for conditioning the water collected in said tank, dosing means (40, 42) of manuring and/or fertilizers and/or nutrients substances in said tank, means (40, 42) for regulating the chemical and/or physical parameters of the water collected in said tank; characterized in that said air conditioning means comprise a first evaporator having a first cylindrical jacket closed at the ends to define a first collection chamber of the air to be conditioned provided with an opening for the connection of said withdrawal conduit. wherein said upper air conditioning unit comprises air conditioning means (10, 14) for cooling and dehumidifying the air and air heating means adapted to be operated in a combined and/or selective manner to vary the temperature and/or humidity parameters of the air to be sent to the external environment; wherein said lower water treatment unit comprises water conditioning means (31, 32) for conditioning the water collected in said tank, dosing means (40, 42) of manuring and/or fertilizers and/or nutrients substances in said tank, means (40, 42) for regulating the chemical and/or physical parameters of the water collected in said tank; characterized in that said air conditioning means comprise a first evaporator having a first cylindrical jacket closed at the ends to define a first collection chamber of the air to be conditioned provided with an opening for the connection of said withdrawal conduit.