Brassica oleraceae var. chinensis. Also known as Shanghai Pac Choi, this is a beautiful little vase-shaped plant. This early baby pac choi is mild and tender with medium-green leaves on pale-green, spoon-shaped stalks (petioles). Bred to be tolerant to heat, rain, cold, and dampness. Ching Chiang Shanghai pac choi seeds are a great variety for early spring planting under cover and for late summer plantings in mild-winter areas. Harvest when 15cm (6") tall.