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Providing Quality Heirloom & Non-GMO Seeds Since 2012
Providing Quality Heirloom & Non-GMO Seeds Since 2012
Mustard Seeds - Tendergreen
$2.75
$2.95
Save $0.20
Approx. 800 Premium Seeds
(100% Non-GMO, Heirloom)
Tendergreen Mustard – The "Mild & Mighty" Heirloom Spinach-Mustard for Continuous Summer Harvests
Shop the highest quality Tendergreen Mustard seeds and discover the most versatile "Green" in the heirloom world. Often called "Mustard Spinach," Tendergreen is the perfect solution for gardeners who love the health benefits of dark leafy greens but prefer a smooth, mild flavor without the sharp "peppery" bite of traditional mustards. At The Seed Guy®, our seeds are 100% Non-GMO and open-pollinated, offering you a fast-growing, heavy-yielding plant that thrives when other greens begin to wilt.
In the garden, Tendergreen is a champion of resilience. It is the "Heat-Defying Hero" of the greens patch, showing remarkable resistance to bolting during mid-summer spikes while still being hardy enough to handle a light autumn frost. The large, smooth, dark-green leaves are succulent and tender, making them ideal for fresh salads when young, or for steaming and stir-frying when mature. Because it is so fast-growing (ready in as little as 35 days), it is the "Quick-Crop King" for gardeners looking to maximize their seasonal output through succession planting. At The Seed Guy®, our seeds are tested for elite germination, ensuring your garden is packed with high-energy, nutrient-dense greens from early spring through late fall.
Why choose heirloom Tendergreen Mustard Seeds?
✅ 100% Non-GMO & Open-Pollinated
✅ The Mildest Mustard — A delicate flavor perfect for kids and picky eaters
✅ "Heat-Tolerant Champion" — Resists bolting better than spinach or lettuce
✅ Lightning Fast Growth — Harvest baby greens in just 25–30 days
✅ Versatile "Dual-Purpose" Green — Use raw in salads or cooked in Southern favorites
✅ Exceptional Nutrient Density — High in Vitamin A, C, and Calcium
✅ Disease Resistant — Smooth leaves are easier to clean and less prone to pests
✅ A reliable "Must-Have" for the self-sufficient homestead garden
Approx. 825 Premium Seeds
(100% Non-GMO, Heirloom)
Southern Giant Curled Mustard – The "Tried and True" Prize-Winner for Beautifully Frilled, Zesty Southern Greens
Shop the highest quality Southern Giant Curled Mustard seeds for a robust and spicy garden harvest. If you are looking for the ultimate mustard green for flavor and texture, this 1935 All-America Selections winner is the "real deal." Southern Giant Curled is beloved for its massive, bright green leaves that feature heavily curled and fringed edges. At The Seed Guy®, we recommend this variety for its bold, "uptown" peppery kick that adds incredible depth to stews, salads, and traditional boils. It is as decorative in the garden as it is delicious on the plate.
In the garden, Southern Giant Curled is a fast-growing powerhouse that thrives in cooler temperatures. It is a fantastic companion plant for onions and southern peas, and its thick, ruffled leaves are remarkably cold-hardy, often surviving a light frost which only serves to sweeten the flavor. Because of its upright growth habit, it stays cleaner than flatter varieties, making harvest and washing a breeze. At The Seed Guy®, our seeds are tested for elite germination and leaf curl uniformity, ensuring you grow a crop that looks like it belongs on a magazine cover.
Why choose heirloom Southern Giant Curled Mustard Seeds?
✅ 100% Non-GMO & Open-Pollinated
✅ Beautifully fringed and curled leaves for superior texture
✅ Bold, zesty flavor that stands up to cooking and seasoning
✅ Highly cold-tolerant—perfect for early spring and late fall gardens
✅ Fast-maturing variety that provides heavy yields
✅ High in Vitamins A, C, and K to boost your home-grown nutrition
✅ A legendary heirloom favorite that has set the standard since 1935
 |
PLAN FOR SUCCESS: How much should you plant for your family? Take the guesswork out of your garden with our Master Garden Yield Guide & Planting Chart. |
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Quick Growing Specifications:
Hardiness Zone: 3-12 (Annual)
Days to Maturity: 35-45 Days
Planting Depth: 1/4" Deep
Plant Spacing: 6" Apart (12" for full heads)
Germination: 4-7 Days
Tendergreen Mustard Planting Instructions:
1. When to Plant: Tendergreen is incredibly flexible. Direct sow as soon as the soil can be worked in early spring. Unlike most greens, it can be planted every 2 weeks throughout the summer for a continuous "Succession Harvest" and again in late summer for a fall crop.
2. Preparation: Choose a location with full sun to partial shade. Mustard greens love nitrogen-rich soil, so amend your bed with plenty of compost or organic matter before sowing.
3. Sowing: Sow seeds 1/4 inch deep. For baby greens, sow seeds thickly in rows. For large, mature leaves, space plants or thin seedlings to 6-12 inches apart. Rows should be 12-18 inches apart to allow for easy weeding.
4. Watering and Care: Keep soil consistently moist to prevent the leaves from becoming too spicy or tough. Mulching around the plants will help regulate soil temperature and keep the "Quick-Crop" growing rapidly.
5. Harvesting: You can begin harvesting individual outer leaves when they reach 3-4 inches long (baby stage) for the mildest flavor. For a full harvest, cut the entire plant at the base. Frequent harvesting of outer leaves encourages the plant to continue producing fresh, tender growth from the center.
Brassica rapa var. perviridis
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16 other products in the same category:
Approx. 800 Premium Seeds
(100% Non-GMO, Heirloom)
Tendergreen Mustard – The "Mild & Mighty" Heirloom Spinach-Mustard for Continuous Summer Harvests
Shop the highest quality Tendergreen Mustard seeds and discover the most versatile "Green" in the heirloom world. Often called "Mustard Spinach," Tendergreen is the perfect solution for gardeners who love the health benefits of dark leafy greens but prefer a smooth, mild flavor without the sharp "peppery" bite of traditional mustards. At The Seed Guy®, our seeds are 100% Non-GMO and open-pollinated, offering you a fast-growing, heavy-yielding plant that thrives when other greens begin to wilt.
In the garden, Tendergreen is a champion of resilience. It is the "Heat-Defying Hero" of the greens patch, showing remarkable resistance to bolting during mid-summer spikes while still being hardy enough to handle a light autumn frost. The large, smooth, dark-green leaves are succulent and tender, making them ideal for fresh salads when young, or for steaming and stir-frying when mature. Because it is so fast-growing (ready in as little as 35 days), it is the "Quick-Crop King" for gardeners looking to maximize their seasonal output through succession planting. At The Seed Guy®, our seeds are tested for elite germination, ensuring your garden is packed with high-energy, nutrient-dense greens from early spring through late fall.
Why choose heirloom Tendergreen Mustard Seeds?
✅ 100% Non-GMO & Open-Pollinated
✅ The Mildest Mustard — A delicate flavor perfect for kids and picky eaters
✅ "Heat-Tolerant Champion" — Resists bolting better than spinach or lettuce
✅ Lightning Fast Growth — Harvest baby greens in just 25–30 days
✅ Versatile "Dual-Purpose" Green — Use raw in salads or cooked in Southern favorites
✅ Exceptional Nutrient Density — High in Vitamin A, C, and Calcium
✅ Disease Resistant — Smooth leaves are easier to clean and less prone to pests
✅ A reliable "Must-Have" for the self-sufficient homestead garden
Approx. 825 Premium Seeds
(100% Non-GMO, Heirloom)
Southern Giant Curled Mustard – The "Tried and True" Prize-Winner for Beautifully Frilled, Zesty Southern Greens
Shop the highest quality Southern Giant Curled Mustard seeds for a robust and spicy garden harvest. If you are looking for the ultimate mustard green for flavor and texture, this 1935 All-America Selections winner is the "real deal." Southern Giant Curled is beloved for its massive, bright green leaves that feature heavily curled and fringed edges. At The Seed Guy®, we recommend this variety for its bold, "uptown" peppery kick that adds incredible depth to stews, salads, and traditional boils. It is as decorative in the garden as it is delicious on the plate.
In the garden, Southern Giant Curled is a fast-growing powerhouse that thrives in cooler temperatures. It is a fantastic companion plant for onions and southern peas, and its thick, ruffled leaves are remarkably cold-hardy, often surviving a light frost which only serves to sweeten the flavor. Because of its upright growth habit, it stays cleaner than flatter varieties, making harvest and washing a breeze. At The Seed Guy®, our seeds are tested for elite germination and leaf curl uniformity, ensuring you grow a crop that looks like it belongs on a magazine cover.
Why choose heirloom Southern Giant Curled Mustard Seeds?
✅ 100% Non-GMO & Open-Pollinated
✅ Beautifully fringed and curled leaves for superior texture
✅ Bold, zesty flavor that stands up to cooking and seasoning
✅ Highly cold-tolerant—perfect for early spring and late fall gardens
✅ Fast-maturing variety that provides heavy yields
✅ High in Vitamins A, C, and K to boost your home-grown nutrition
✅ A legendary heirloom favorite that has set the standard since 1935
|
PLAN FOR SUCCESS: How much should you plant for your family? Take the guesswork out of your garden with our Master Garden Yield Guide & Planting Chart. |
Mustard Seeds - Tendergreen
$2.75
$2.95
Save $0.20