Leafy Greens Mustard Tendergreen, also known as Spinach Mustard, is a distinctive heirloom that bridges the gap between traditional mustard greens and spinach. It delivers the mild flavor and nutrition of spinach while keeping the robust constitution and heat tolerance of a mustard. Where conventional spinach bolts quickly under heat stress, Tendergreen keeps producing tender, high-quality leaves right through hot weather, and it shrugs off variable moisture, temperature swings, and a wide range of soil types. Baby leaves are ready in about 21 days for salads, and full-sized plants mature in about 45 days for cooking. That quick timeline makes it ideal for succession planting from early spring straight through fall.

Germination Rate: 85%. Test Date: 11/25. WILL.

Texas Minimum Germination Rate: 75%.

Why Choose Tendergreen Mustard?

• Mild, Spinach-Like Flavor: Far gentler than assertive mustard varieties — tender enough for raw salads and smoothies.
• Heat & Drought Tolerant: Keeps producing when spinach would have bolted weeks earlier, a real advantage in southern gardens.
• Fast to Harvest: Baby leaf in about 21 days, full-sized plants in about 45 — excellent for succession sowing.
• Widely Adaptable: Reliable across virtually any USDA zone, from cool northern gardens to hot southern ones.
• Heirloom & Open-Pollinated: Passed down for at least 75 years and true to type — save your own seed year after year.
• Non-GMO Seeds: Plants whose DNA has not been altered in ways that do not occur naturally through traditional breeding methods.

Planting Tips for Success

• Sunlight: Full sun for best growth, though it tolerates partial shade, which can extend the harvest in hot weather.
• Soil: Fertile, well-drained soil rich in organic matter with a pH of 6.0–7.5.
• Planting: Direct sow ¼ to ½ inch deep as soon as soil can be worked in spring, and again 6 to 8 weeks before first fall frost. Fall crops are often the sweetest.
• Spacing: Sow thinly in rows 12–18 inches apart. Thin to 6 inches apart for full-sized plants, or leave thick for baby leaf cutting.
• Watering: Keep soil evenly moist for tender leaves. Steady water prevents toughness and bitterness.
• Fertilizing: Side-dress with a nitrogen-rich fertilizer a few weeks after emergence to push lush leaf growth.
• Succession Planting: Sow a short row every two to three weeks for a continuous supply rather than one large flush.
• Harvesting: Cut outer leaves and let the center keep growing for repeated harvests, or cut the whole plant at 45 days.

Why Choose David's Garden Seeds®?

• Veteran-Owned: Supplying premium seeds since 2009.
• GO TEXAN Certified: Supporting local agriculture and communities.
• Integrity Pledge: David's Garden Seeds has taken the Seed Integrity Pledge.
• Great Customer Service: David answers all customer service questions. Usually within a few minutes.
• Vegetable Seed License: David's Garden Seeds has been granted a Vegetable Seed License for the State of Texas.

Cooking Methods

• Fresh Salads: Baby leaves are mild and tender enough to eat raw with a simple vinaigrette.
• Southern Style: Simmer mature leaves low and slow with smoked meat, onion, and a splash of vinegar.
• Sautéed: Wilt quickly in olive oil with garlic and a squeeze of lemon for a fast side dish.
• Soups & Stews: Stir chopped leaves in at the end of cooking for color, body, and nutrition.
• Smoothies: The mild flavor blends into green smoothies without the bite of stronger mustards.
• Stir-Fry: Toss with sesame oil, ginger, and soy for a quick Asian-style green.

Order Tendergreen Mustard Seeds Today

Order yours today and grow your own fresh mustard greens in your spring and fall gardens.

Nutritional Information

(Applies to the harvested greens, not seeds. Per 1 cup chopped raw mustard greens, approx. 56g.)

• Calories: 15
• Total Fat: 0.2g
• Sodium: 11mg
• Total Carbohydrate: 2.6g
• Dietary Fiber: 1.8g (6% Daily Value)
• Total Sugars: 0.7g
• Protein: 1.6g
• Vitamin K: 278mcg (232% Daily Value)
• Vitamin A: 84mcg (9% Daily Value)
• Vitamin C: 39mg (43% Daily Value)
• Folate: 105mcg (26% Daily Value)
• Calcium: 64mg (5% Daily Value)

Important Disclosures

• Variety Disclaimer: Heirloom and open-pollinated varieties may exhibit natural variation in size, color, and maturation. Flavor sharpens in hot weather and sweetens after light frost. Results may vary by growing conditions and climate.
• Seed Storage: Store seeds in a cool, dry location away from direct sunlight. Refrigeration in an airtight container extends viability. Properly stored mustard seeds remain viable for 3–4 years.
• Planting Zones: Grown as a cool-season annual in all USDA zones, with unusually good heat tolerance for a green. In Zones 9–11, plant fall through winter for the best quality. Consult your local extension service for zone-specific guidance.

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