PVC gutter (multi-purpose) for growing strawberries, cucumbers, tomatoes, peppers, aromatic plants, salads etc. without soil. Self-supporting, suspended, placed on the ground or on shelves, it enables hot or cold fluids to circulate between its two walls, without any additional pipes, thus heating and cooling the root system of the plant and its immediate surroundings. It modulates temperature differences, keeps cultivation frost free (energy saving, geothermal effect) or conversely it lowers the temperature of the growing environment if it is too hot. With integrated recovery of all leachates, crop irrigation and misting.