HON TSAI TAI (Broccoli rapa, v. chinensis) is a relative of mustard, and like that green, has a delightful pungency but the flavor has sweet notes as well. A beautiful rapa of which all parts are edible (flowers, leaves & stalks), this variety is considered a fall crop and the cooler days will bring on the purple color of the stems. Try it fresh, in stir fries or pasta. 37 days. 100 seeds.