Japanese Red Giant Mustard is a bold, broad-leafed mustard green that grows 18-24 inches tall and reaches harvest in just 60-69 days. This Japanese heirloom variety, known locally as taka-na, produces striking purple-tinged leaves with a distinctive crepe-like texture and delivers a spicy, peppery mustard punch that intensifies its culinary presence. Hardy from zones 2-10 and frost-tolerant, it thrives in full sun with moderate water and matures quickly enough to fit multiple harvests into a single growing season. You can harvest it as delicate microgreens, tender baby leaves, or wait for full-sized plants that offer serious flavor and presence in salads and stir-fries.
Full Sun
Moderate
2-10
24in H x ?in W
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Moderate
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Red Giant's broad, textured leaves carry an exceptional spicy mustard flavor that few greens can match, and the deep purple coloring hints at the antioxidants packed inside. It's exceptionally adaptable, thriving across hardiness zones 2-10, and the frost tolerance means you can push your season on both ends. Best of all, the rapid 60-69 day maturity gives you flexibility: treat it as a microgreen for quick harvests, pick baby leaves for tender texture, or let it fully mature for dramatic size and bold flavor.
This mustard shines raw in salads where its crepe-textured leaves and bold spicy flavor become a statement ingredient, and it's equally at home in stir-fries and cooked greens dishes where the heat mellows slightly and its substantial leaf structure holds up beautifully. The broad leaves make it excellent for wrapping or tearing into grain bowls, and gardeners often harvest it at multiple stages: microgreens for peppery accents, baby leaves for tender salads, or mature plants for cooking applications.
No timeline data available yet for this variety.
Direct sow seeds in spring or late summer for fall harvest, timing plantings to take advantage of cool weather when the mustard flavor is sharpest. Push seeds into prepared soil at a depth of 1/4 inch and keep the seedbed moist until germination occurs.
You control the harvest timing based on your preference. For microgreens, cut at soil level within 7-10 days of germination when the first true leaves emerge. For baby leaf harvest, pick outer leaves when plants are 4-6 inches tall, which encourages continued production from the center. For full-size mature plants at 60-69 days, harvest entire plants by cutting at the base or pick individual outer leaves as needed, using visual cues of leaf size and vibrant purple coloring to gauge readiness.
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