Plants are the factories of nature, transforming minerals and water into structural organic matter, such as fibres and cellulose. Could we harness these processes on the Moon? With funding from the Discovery element of ESA's Basic Activities, a research team from the University of Trieste is examining the feasibility of using vegetable fibres grown on the lunar surface to produce the raw material for a 3D printer. The project is based on an idea submitted by the University of Trieste through the Open Space Innovation Platform (OSIP).