12 seeds per packet. A rarely offered, clump-forming, dwarf species that is native to the mountains of China. Produces delicate, starry, lilac flowers that are produced in succession from April to October and beautiful foliage often marked in purple with a silver overlay. Height 30 cm. Moist, humus rich, well-draining soil in part to full shade. Perfect for the woodland garden or front of a shady border. Cold germinator.