Kosaitai Raab – Brassica Rapa VAR Purpurea Seeds

This flowering purple stem choy sum, also known as kosaitai or hon tsai tai, is a popular Chinese specialty vegetable. The leaf stalks and veins are purple while the leaves are dark green and the flowers are yellow. Low temperatures intensify the colors. Best grown as a fall/winter crop—the plants will bolt early when sown in spring to summer. Kosaitai can be cut young and will re-grow for additional harvests.