Myvilion is a biodegradable temporary exhibition system for the Melbourne International Flower and Garden Show. As a building material, mycelium has fascinating biological properties. It can grow to fill complex geometries, is light-weight, and provides thermal and acoustic insulation. It is compostable and non-toxic. The design of the pavilion employs each mycelium brick as part of a structural system as well as a planting pot. During the event, the audience is encouraged to choose a plant (and brick) and transplant it directly into their backyard. In doing so the pavilion is deconstructed and redistributed across the city. In this way, the Myvilion becomes a petri dish for future greening, a starting point of a new life cycle.