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Mustard Red Giant Seeds produce Brassica juncea ‘Red Giant’, a cool-season leaf mustard with broad green-ribbed leaves that develop burgundy-red to purple colour. Harvest it young for baby leaf or let plants make larger greens for cooking.
Grow it successfully: Read the Mustard Red Giant baby-leaf and mature-greens guide.
Quick Grow Facts
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Plant Type: Cool-season annual leafy vegetable
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Scientific Name: Brassica juncea
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Cultivar: Red Giant
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Seed Form: Raw seed; this describes the format and does not prove that a lot is untreated
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General Sowing Time: Use the regional cool-season windows in the linked guide; the current packet states early spring/autumn
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Position: Full sun in cool weather; light afternoon shade as conditions warm
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Sow Depth: 1.5 cm, as stated on the current packet
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Spacing: Baby leaf 2–3 cm in rows 15–20 cm apart; mature plants 15 cm × 30 cm
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Germination: 7–14 days; aim for about 13–20°C soil
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Leaf Harvest: Baby leaves from about 21 days; full-size leaves about 45 days under good conditions. The packet’s 90–100-day figure is a late mature-stage estimate, not the first leaf harvest.
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Height: Leaf crop up to about 40 cm; a bolting flower stalk grows taller
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Seed Quantity - 5g raw seed: Approx 3 125 seeds
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Seed Quantity - 100g raw seed: Approx 62 500 seeds
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Seed Quantity - 1kg raw seed: Approx 625 000 seeds
Why Grow This Variety
- Young red-purple leaves add colour and mustard flavour to salads.
- Larger leaves can be cooked in soups, stews, curries and stir-fries.
- Staggered short rows provide a longer baby-leaf harvest.
- The product is treated as the dedicated leaf mustard in the three-product guide.
Growing Notes
- Direct-sow 1.5 cm deep, keep the seed zone evenly moist and thin at 3–4 true leaves.
- Keep growth steady; heat and drought make leaves stronger and bring bolting forward.
- Harvest outside leaves while leaving the crown intact, or cut baby leaf above the growing point.
- Use only crop-protection products registered for edible mustard and observe the harvest interval.
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