- A fast growing variety that is best known for its green-purple leaves that are commonly used in wasabi.
21 to 45 days. An outstanding mustard of dark green-purple leaves with bright white veins. Harvest at 4 to 6 inches for salad or allow it to grow to full size for boiling greens. Fast and easy to grow, great crop for spring, or fall into early winter. Colorful microgreen with a bit of a bite.Osaka mustard is a strong japanese mustard, with beautiful purple highlights. It is one of the primary ingredients in making wasabi. It grows well to the baby salad stage and is delicious as microgreen or baby salad green. Try as a fresh garnish with sushi instead of wasabi.