Outdoor sculptures that harmonize with arboretum displays create a unique fusion of art and nature, offering visitors an immersive experience. Among the most famous is "The Tree of Life" at Disney's Animal Kingdom, a towering artificial baobab adorned with intricate animal carvings, surrounded by lush greenery. Another standout is "The Living Wall" by Patrick Blanc, a vertical garden sculpture that blends horticulture and artistry in public spaces like CaixaForum Madrid.

In Seattle, the Olympic Sculpture Park features Mark di Suvero's "Bunyon's Chess," a massive steel structure juxtaposed against native plantings. The Chicago Botanic Garden showcases "Model of a Garden" by Dan Graham, a reflective glass pavilion that interacts dynamically with its arboreal surroundings. Meanwhile, the Royal Botanic Gardens, Kew, houses "The Hive," a stunning aluminum sculpture mimicking a beehive, surrounded by wildflower meadows.

These sculptures not only enhance arboretum displays but also invite contemplation on humanity's relationship with nature. By integrating artistic vision with botanical landscapes, they redefine public spaces as living galleries.