15 seeds per packet. A biennial species native to China, Japan, Taiwan and Korea. Produces beautiful, dainty, blue-green, ferny foliage with racemes of tubular, pinky-purple flowers. Although a short-lived species it will self-sow when happy. Height 10 to 40 cm. Part shade in moist, well-draining soil. Germinates after a cycle of warmth, followed by cold, then warm again.