Abstract: A raised bed garden assembly, kit, and method are provided. The garden assembly comprises a prefabricated enclosure along with additional components useful for creating a raised bed garden or similar growing enclosure, such as an irrigation system and greenhouse covering. The garden assembly can be provided in a kit for easily establishing a garden and growing fruits and vegetables at home, along with soil and plants. The garden enclosure can be a monolithic, self-sustaining body that is unitarily formed, or it can be modular. The modular enclosure comprises sidewalls and corner members, which are unitarily formed modular pieces that can be detachably-connected to define the enclosure shape. Advantageously, the enclosure is devoid of any non-integral attachment elements.