This paper presents Plantagon's spherical-greenhouse. Architects at Australia-based firm CK Designworks have designed the world's first vertical street, a 35-storey high-rise to be built in Melbourne, in which every sixth floor will have gardens planted with trees growing up to 10m tall. According to project architect Robert Caulfield, 'Crystal Gardens' is the first time that five communal gardens have been attempted in the same high-rise. Purpose-built planter boxes allowing tree roots to grow in the confined 120m2 gardens have been designed while novel structural supports that hold the weight of the soil and trees will be used.