“Have you ever tried kohlrabi before?” the tall, lean man asked over his shoulder, excitement growing on his face. Arthur Shavers looked like a schoolboy as he pushed his half-rim glasses up and focused his attention on the row of leafy greens waving in the breeze. He bent over, his fraying straw hat almost grazing the tips of the shimmering plants, and swam his hands through the crunchy leaves. His partner, Shantae Johnson, was already elbow-deep in greens, on the hunt for the wild cabbage nearby. Moments later, Johnson, who has a constant twinkle in her eye, emerged victorious, yanking a fist-sized, lilac-purple bulb out of the soil, its purple offshoots radiating like the filaments of a plasma globe.