Japanese Red Mustard Mizuna is a peppery mustard green beloved in Japan and celebrated in gourmet salad mixes worldwide. Its frilly, lace-like foliage delivers a zippy, hot flavor that transforms salads, soups, and stir-fries with a distinctive bite. This cool-season heirloom thrives in full sun and matures quickly, offering gardeners the flexibility to harvest tender baby greens in just 25 days or allow plants to reach their full 3-foot size. With a 4-inch spacing requirement and a preference for temperatures between 55-70°F, it's a reliable choice for both experienced farmers and home gardeners seeking a flavor-packed green.
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The real magic of this variety lies in its dual harvest strategy. Sow seeds densely at 1 inch apart for frequent baby green harvests, or thin to 4 to 6 inches apart and let plants develop their full architectural glory. The frilly foliage deepens in color as the season progresses, creating a visual feast alongside its signature peppery heat. Japanese cooks have prized this green for generations, and it remains a cornerstone of authentic gourmet salad mixes today.
This mustard green shines in fresh salads where its peppery kick adds complexity and visual interest. It performs beautifully in soups, where its tender leaves soften while maintaining their distinctive flavor. Stir-fries benefit enormously from its heat and texture, and it can be harvested repeatedly at the baby green stage for tender, mild applications or allowed to mature for more robust, assertive dishes.
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Direct sow seeds in garden beds or containers in spring or fall when temperatures are cool. For baby greens, sow densely at 1 inch apart and begin harvesting at 25 days. For mature plants, sow at your desired spacing and thin as needed.
For baby greens, begin harvesting at 25 days when plants are tender and mild-flavored. For mature plants, wait until they reach their full size of approximately 3 feet tall. Harvest outer leaves first to encourage continued growth, or cut the entire plant just above soil level for a second or third harvest. The foliage will deepen in color as the season progresses, signaling peak maturity and flavor intensity.
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“This mustard green carries the culinary heritage of Japan, where it has been cultivated and celebrated for its distinctive peppery character and delicate appearance. Its presence in traditional Japanese cuisine and modern gourmet food culture speaks to its enduring value and reliability as a crop. As a heirloom variety, it represents generations of seed saving and cultivation by gardeners who recognized its superior flavor and performance in cool climates.”