Product holder assembly for a mobile cultivation of crops such as plants and potted plants, along at least one path in a hall, which 5 assembly comprises: — a product holder that is formed predominantly flat for supporting the plants, — supporting means arranged at the product holder to allow the product holder to be supported at a location along the path, 10 — engagement means arranged at the product holder to allow the product holder to be hold by a carrier and to be transported through the hall along a path in a manner that may or may not be automated, and — an aerating system arranged at the product holder to generate a flow of air into a space above the product holder of the product holder 15 assembly for a mobile cultivation of crops such as plants and potted plants.
