This project investigates repurposing invasive species, such as Japanese knotweed and spirulina algae, into ecologically conscious biomaterials for experimental architecture. These species pose ecological threats, and their removal offers environmental benefits. Initial experiments used spirulina-based bioplastic panels, resembling stained glass, and expanded to incorporate pigments from red cabbage and beet. Future iterations explore casting bioplastics into laser-cut knotweed sheets or transforming the plant into fibrous materials and cork-like bricks. By integrating ecological restoration with design, this research demonstrates aesthetic and functional possibilities, inspiring sustainable practices and fostering community engagement by redefining invasive species as valuable resources rather than waste.