Outdoor sculptures serve as powerful symbols of sustainability, often reflecting the principles of green manuring through their materials and themes. Artists increasingly use eco-friendly materials like recycled metals, reclaimed wood, or biodegradable composites, mirroring the natural recycling process of green manuring. These sculptures not only beautify public spaces but also educate viewers about environmental stewardship. By integrating organic shapes or depicting agricultural motifs, they visually echo the cycle of growth and decay central to green manuring. Some installations even incorporate living plants or compostable elements, directly embodying sustainable practices. This artistic movement highlights how creativity can inspire ecological awareness, merging aesthetics with earth-friendly values.