How to Grow Düsseldorf Mustard Greens

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Düsseldorf Mustard Greens

Brassica juncea var. crispifolia

vegetable

Düsseldorf is a distinctive mustard green variety with deeply frilled, curly leaves that range from dark green to burgundy. This cold-hardy brassica is prized for its tender, mildly peppery leaves and ornamental appearance. It thrives in cool seasons and is excellent for both culinary use and garden aesthetics.

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Example Düsseldorf Mustard Greens timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Düsseldorf Mustard Greens

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Düsseldorf Mustard Greens

    Around May 27

    ≈ 40 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Düsseldorf Mustard Greens dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade, 4-6 hours of sunlight daily; afternoon shade beneficial in warm regions
💧
Water: Consistent moisture; provide 1-1.5 inches per week. Keep soil evenly moist but not waterlogged. More frequent watering needed in hot weather
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Spacing: 6-12 inches apart inches
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Days to maturity: 40-60 days from transplant; 50-70 days from direct seed
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Planting depth: ¼ to ½ inch for seeds; transplants at soil depth

Soil

Type: Well-draining, fertile loamy soil rich in organic matter
pH: 6.0-7.5
Amendments:
compost aged manure leaf mold nitrogen-rich fertilizer

Growing Zones

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Ideal in zones 3-8; grows best in cool-season conditions

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Seedling

2-3 weeks

Tiny cotyledons emerge within 5-10 days; first true leaves begin appearing with characteristic serrated edges

Keep soil consistently moist. Provide bright light to prevent leggy growth. Thin seedlings to proper spacing once true leaves develop

2

Vegetative Growth

3-4 weeks

Leaves expand rapidly with increasing frilliness and deepening color. The plant develops a compact, bushy rosette form

Maintain consistent watering and moderate nitrogen fertility. Remove any damaged leaves. Monitor for pests weekly

3

Mid-Growth/Edible Leaves

2-3 weeks

Plant reaches 6-10 inches tall with many harvestable outer leaves; central leaves continue developing

Begin harvesting outer leaves to encourage continued growth. Provide balanced fertilizer. Increase watering in dry periods

4

Mature/Peak Harvest

2-4 weeks

Plant reaches full size (12-18 inches) with fully frilled, tender leaves at peak flavor and texture

Harvest regularly to prevent bolting. Keep soil consistently moist. Harvest in early morning for best crispness

5

Bolting/End of Season

1-2 weeks

Plant sends up flowering stem and leaves become tougher and more bitter. Center leaves yellow slightly

Harvest remaining leaves before they become tough. Plant new crop for succession harvesting. Remove plant if no longer harvesting

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

cabbage cauliflower broccoli kale kohlrabi strawberries tomatoes pole beans

Common Pests

  • Use row covers early; apply Bt (Bacillus thuringiensis); hand-pick caterpillars; encourage beneficial wasps

  • Use floating row covers; apply kaolin clay; use neem oil; plant trap crops of radishes nearby

  • Spray with strong water jet; apply insecticidal soap; use neem oil; encourage ladybugs and parasitic wasps

  • Use row covers; apply horticultural oil in early spring; introduce parasitic wasps; spray with neem oil

  • Use yellow sticky traps; apply insecticidal soap; spray with neem oil; increase air circulation

Uses

🍳

Fresh Salads & Slaws

Culinary

The tender, frilly leaves add beautiful texture and mild peppery flavor to salads and slaws. Young leaves are especially tender and can be eaten raw with minimal preparation. [source]

🍳

Cooked Greens & Stir-Fries

Culinary

Düsseldorf greens cook down nicely when sautéed, steamed, or added to soups and Asian stir-fries. The flavor becomes milder when cooked, making it appealing to those sensitive to raw peppery tastes. [source]

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Nutritional & Antioxidant Value

Medicinal

Like all mustard greens, Düsseldorf is rich in vitamins K, C, and A, plus glucosinolates that have potential anti-cancer properties. It provides minerals like calcium, iron, and manganese important for bone health. [source]

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Ornamental Edible Gardening

Household

The striking curly, burgundy-tinged foliage makes Düsseldorf attractive for decorative edible garden displays and mixed vegetable borders. Its ruffled texture adds visual interest to landscape plantings. [source]

🦋

Pollinator & Beneficial Insect Support

Wildlife

When allowed to flower, Düsseldorf produces small yellow flowers that attract pollinators and beneficial insects. Leaving a few plants to bloom supports garden biodiversity. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Begin harvesting outer leaves when plant is 6-8 inches tall, cutting 1-2 inches from the base of leaf stem. This encourages continued inner leaf development. Harvest in early morning for crispest texture. Pick leaves frequently (every 2-3 days) to prevent bolting and maintain tenderness. For baby greens, harvest at 4-5 weeks; for mature greens, wait 8-10 weeks. Leaves are most tender before flowering begins. Can be harvested continuously until plant bolts or temperatures become very hot

Fun Facts

  • 🌱 Düsseldorf mustard greens are named after the German city of Düsseldorf and were developed in Europe, becoming particularly popular in German and Central European cuisines.
  • 🌱 Mustard greens are one of the most cold-hardy leafy greens and can often be harvested well into autumn and even winter in milder climates, sometimes surviving to provide early spring harvests.
  • 🌱 The peppery flavor in mustard greens comes from glucosinolates, sulfur-containing compounds that release when cells are damaged—the more you chew, the spicier it becomes.

Gardening Terms

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