The Mache Corn Salad Big Seeded, 'Valerianella locusta', has the mildest flavor and softest texture of any salad green. The leaves are so tender, they melt in your mouth. We chose the big-seeded Mache variety because it handles spring/summer heat without getting bitter. Great for both north and south gardens. This old garden green, enjoyed in the late stone age, contrasts nicely with the sharp-flavored greens in salads. To harvest, simply cut off at ground level. The leaves can be picked off when they are 1 to 2 inches long.