Purple bunching onions are a vibrant, flavorful variety of green onions distinguished by their striking purple bulbs that fade into crisp white bases and long, slender green tops. They have a mild, slightly sweet onion flavor with a hint of peppery sharpness, making them perfect for salads, stir-fries, grilling, or as a colorful garnish. Their unique appearance and versatile taste make them both a culinary and visual standout.