Red Giant Mustard Seeds
Red Giant Mustard Seeds - 200 Seeds is backordered and will ship as soon as it is back in stock.
WHY CHOOSE US?
WHY CHOOSE US?
♥ Purely Natural, 100% NON-GMO Seeds.
♥ Superior Germination,Reliable Seeds for Your Garden.
♥ Ships within 1 to 2 business days.
♥ Quality assurance 30-Day Money-Back guarantee,Worry-Free !
♥ Payments Via PayPal or Credit Card.
RETURN POLICY
RETURN POLICY
Haiyiplants Return and Exchange Guarantee | 30-Day Worry-Free After-Sales Service, Quality You Can Trust
At Haiyiplants, we want every customer to feel confident when choosing their favorite seeds. Therefore, we are proud to introduce our 30-day worry-free return and exchange policy—providing transparent and thoughtful service to safeguard your gardening journey. Whether the seed variety does not meet your expectations or you encounter any quality issues, our team is dedicated to providing you with efficient solutions to ensure that your shopping experience is always worry-free.
Order Cancellation
You can cancel your order within 48 hours after placing it. Refunds will be returned to your original payment method, with processing times of 1-2 business days.
Return Policy: Convenient Process, Safe Refunds
We guarantee that all seeds are non-GMO varieties and provide reliable germination rate assurance. If you find that the packaging is damaged, the seeds are moldy, the variety does not match the description, or the promised germination rate is not achieved under the correct cultivation conditions, you can request a return within 30 days of receiving your order. After verification, we will issue a full refund.
Exchange Policy: Accurate Matching, Quick Replacement
If you receive seeds with the aforementioned quality issues or need to change the variety specifications, you can request an exchange within 30 days. We will prioritize matching you with the desired variety and quickly dispatch the new products to minimize your waiting time.
After-Sales Service Exceptions
Haiyiplants is not responsible for returns, exchanges, or seed failure due to the following circumstances: improper storage (such as high temperatures, humidity, or exposure to sunlight), cultivation environments that do not meet plant growth requirements, or sowing errors that are not related to the quality of the product itself, leading to seeds failing to germinate or poor growth; contamination or loss caused by human error after the seeds have been unsealed.
Note: For seeds that experience a decrease in germination rate due to slight improper storage, our team of professional horticulturists can provide free cultivation guidance. For more details, please contact our customer service.
Contact Us
If you have any questions about returns or exchanges or need assistance, please contact us through the following methods:
- Email: export@haiyiplants.com
- Service Hours: Replies within 24 hours, 7 days a week
At Haiyiplants, we uphold our dual quality commitment to non-GMO and germination rates, sincerely treating every gardening enthusiast. Our 30-day worry-free return and exchange policy is designed to allow you to shop with peace of mind and enjoy the fun of planting to harvesting, easily embracing the joy of lush greenery. Thank you for your trust and support!
Red Giant Mustard Seeds - 200 Seeds is backordered and will ship as soon as it is back in stock.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Description
We promise to provide you with high-quality, fresh and viable flower seeds.
Bullet Points:
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Breathtaking Deep Burgundy Color: The intense purple-red leaves are a true garden spectacle. The color becomes even more vibrant when grown in cool weather.
- Massive & Highly Productive Plants: As the name "Giant" suggests, these plants grow large and wide. Just a few plants provide an incredibly generous, continuous harvest.
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Mild, Sweet Peppery Flavor: Unlike sharp, bitter greens, Red Giant Mustard offers a gentle, wasabi-like heat that is incredibly approachable, even for those new to mustard greens.
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Packed with Antioxidants: The deep purple pigment comes from powerful anthocyanins, turning this simple green into a superfood for heart health and inflammation reduction.
- Cold-Hardy Fall Champion: Thrives in the cool weather of autumn. A light frost actually improves its sweetness and tenderizes the leaves even further.
- Versatile Kitchen Star: Use young, tender leaves raw in gourmet spring salads. Sauté mature leaves with garlic and olive oil for a quick, vibrant side dish.
Product Details:
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Genus: Brassica
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Species: Brassica juncea (Purple / Red Giant Mustard)
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Hardiness Zone: USDA Zones 4 – 11 (Cold-hardy; tolerates light frosts down to 25°F).
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Days to Maturity: 40 - 45 days (Baby leaf) / 55 - 60 days (Mature).
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Days to Germination: 4 to 7 days (Optimal soil temp: 55°F - 75°F).
- Seeding Depth: ¼ to ½ inch (0.6 - 1.2 cm).
- Row Spacing: 24 - 36 inches (60 - 90 cm).
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Plant Height: 18 – 24 inches (45 - 60 cm) upright cluster.
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Growth Habit: Upright, spreading rosette. Features massive, broad, deeply wrinkled, deep burgundy/purple leaves with light green stalks and purple veins.
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Soil Preference: Loose, fertile, moisture-retentive loam rich in organic matter. pH 6.0 – 7.5.
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Temperature Preference: Cool weather. Best performance at 50°F - 65°F (10°C - 18°C). Tolerates light frosts well; flavor improves after frost.
- Light Preference: Full Sun (minimum 6 hours) to Partial Shade.

How to Plant & Grow:
- Site Preparation: Choose a location with full sun to partial shade. Mustard greens prefer loose, fertile, moisture-retentive soil. Work 3 inches of aged compost into the top 6 inches of the soil.
- Sowing: Direct sow seeds outdoors in early spring, or in late summer for a spectacular fall harvest. Plant seeds ¼ to ½ inch (0.6-1.2 cm) deep and cover lightly. Keep the soil consistently moist until germination (4-7 days).
Spacing:
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For Giant Mature Plants: Thin seedlings to 18 to 24 inches (45-60 cm) apart in rows spaced 24 to 36 inches (60-90 cm) apart. They need plenty of room to reach their massive, stunning size!
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Square Foot Gardening (SFG): Plant 1 plant per 1-square-foot area for full-size heads.
- Watering: Keep the soil consistently moist. Provide about 1 inch of water per week. Consistent moisture ensures the thick leaves stay tender and sweet.
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Harvesting: You can harvest the entire plant when it reaches full size, OR you can snap off the outer lower leaves and let the inner core keep growing for repeated harvests.
- Gardener's Tip: Harvest after a light frost! This variety tastes its absolute sweetest after it has been touched by a light fall frost. The cold triggers the plant to convert starches into natural sugars.
Planting Calendar:
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Early Spring Crop:
Direct Sow: March to Mid-April (as soon as soil reaches 45°F).
Harvest: May to June.
- Fall/Winter Crop (Highly Recommended for best color & flavor):
August to September.
Harvest: October through Winter (Tolerates light frost). - Mild Winter Zones (USDA 9-11): Can be sown from October to January

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