A method and machine are disclosed for manufacturing a seed-containing material for a food or beverage container or sleeve. The method is automated by a machine which has a conveyor and one or more work stations. During the process, seeds and a securing material, such as an adhesive, are added to the sheet material and the materials are optionally laminated. The method uses a sheet material that may be pre-printed and pre-cut with a blank of a container. The container may be any type of food and beverage container such as a cup, plate, container sleeve, clam shell, or tray. The sheet material is then conveyed for further processing including removal of the blanks from the sheet material and formation into the final product. After its intended end-use, the final product may be planted in a yard, garden, or flower pot to yield flowers or trees depending on the seeds imbedded inside.