500 seeds. 45 days (after germination) Chinese heirloom variety. Fleshy and crunchy stems with sweet and tender leaves and a flavor somewhere between cabbage and chard, grows up to 30cm (12in.) tall. Grows best in partial shade, requires 3-5h of sun but also tolerates full sun with regular heavy watering. Prefers cold weather and is grown in early spring or autumn. (Brassica rapa).