The Hybrid Flax Pavilion constitutes a central exhibition building on the grounds of the Landesgartenschau, located on the winding banks of the recently revitalised Argen River. The pavilion showcases a novel wood-natural-fibre hybrid construction system developed by the Cluster of Excellence "Integrative Computational Design and Construction for Architecture" (IntCDC) at the University of Stuttgart, as an alternative to conventional building methods. The unique hybrid system combines thin cross-laminated timber with robotically wound flax fibre bodies to create a novel, resource-efficient building structure made from regional, bio-based materials with a distinct local connection. Flax was historically processed in the local textile industry, whose old spinning mill was renovated as part of the Landesgartenschau. The pavilion's gently undulating roof, together with its circular floor plan and centrally located climate garden, creates an exhibition space that seamlessly integrates into the surrounding landscape. The geothermally activatable floor slab made of recycled concrete provides year-round comfortable use of the permanent building.