Gateway National Recreation Area is comprised of 61% water. As a network of landmasses spread across a vast fluid terrain, it has the unique opportunity to engage in and celebrate the potential of this aquatic landscape. H2grOw is a conceptual systems design project that draws on techniques of floater hydroponics, exploring the possibilities of using water as a resource for planting, transportation, energy harnessing, food production and recreation. A fleet of mobile Hydro Pods, measuring 75? x 140?, is deployed across Gateway?s network of islands and peninsulas. Each pod is a hydroponic eco-system grown completely without soil. This new landscape is supported primarily on a pontoon ring structure, beneath which hangs a semi permeable membrane housing all essential nutrients.The principles of data sorting are applied to this large array of mobile landscape ?particles?, allowing for unlimited reconfigurations and combinatorial complexity. As all robust ecosystems depend on a balance of conditions to maintain a dynamic equilibrium, H2grOw provides a level of responsiveness suitable for the natural rhythms of Gateway. The landscape units self-sort and cluster to form diverse combinations of both similar and dissimilar plant species and environments.