520 West 28th Street is an iconic, 11-story residential building overlooking the High Line in Manhattan’s Chelsea neighborhood. The structure was designed by Pritzker Prize-winning architect Zaha Hadid, who makes sinuous use of the organic forms and graceful curves that define her globally-significant body of work. Future Green collaborated with the architect on the building’s ground-floor sunken courtyard – made distinct with a sculptural green wall spanning its length, as well as upper-story gardens, terraces, and pool. The green wall evokes tectonic shifts, folding and sliding to form stairs, paving patterns, benches, platforms, and seat-walls across one hundred feet of length. Cast stone ribbons undulate, defining pockets of textured plantings that seem to grow spontaneously out of the rock wall. The planting focuses on rich blue-greens, grays, and violets, including timeless and distinctly-formed species like Mahonia japonica and Euphorbia amygdaloides, echoing the cool steel cladding and organic lines of Hadid’s building. Upstairs, grade changes from one floor to the next across outdoor terraces are taken as an opportunity for careful material articulations in the facade, as well as for planting expansive roof meadow transitions. Outdoor spaces across the building work in concert to respond to unique structures and materials, while also acknowledging and enhancing sightlines and plantings along the High Line itself.