Prefabrication was the answer to a challenging task at the Federal Garden Exhibition 2005 (commonly referred to as BUGA) in Munich for a temporary seasonal planting display area. "The Leaf Garden" consisted of planting beds with paths following the complex pattern of leaf nerves. As the structure was temporary the client requested a low-cost solution without compromising the design. We chose untreated steel and wood as the material for the edges of the planting beds for easy recycling and cost considerations. This reduced the available construction time to only 10 days after the end of the winter to get ready for the first planting in April.