Geneva’s urban future reconnects with its natural past through vertical reforestation using the Miyawaki method. Dense native micro-forests restore biodiversity in city squares, transforming hardscapes into participatory, climate-resilient spaces. Through demonstrative urban reforestation—from seed to planting—cables and poles act as nurseries for pioneer plants and varied trees. Seasonal planting, shared care, and ecological layering create diverse living biotopes, refuges for non-human life.