Brassica rapa
I can't think of a more vigorous vegetable in the garden than Prize Choi.  From a tiny mustard seed to 1.5 lbs of food in a month and a half? Come on.  Prize Choi delivers mild and succulent snow white stems and veining contrasted against lush green leaves. Delicious lightly sauteed in stir-frys.  Our strain has been selected for upright (vase) habit, thick stems, and uniformity. Classy.
45-50 days
Packet size: .5g (~240 seeds), additional bulk sizes.

UO