Platycodon Astra Blue is a plant that is a good choice for a rockery, or alpine trough.
Better known as the Balloon Flower for its starry flowers that burst from rounded, balloon-like buds. Platycodon grandiflorus 'Fuji Blue' is a dainty perennial with a free flowering habit. This undemanding plant will supply a splash of bright blue at the front of perennial borders or rockeries throughout the summer months.