How to Grow Napa Cabbage 'Napa King'

Napa Cabbage 'Napa King'

Brassica rapa subsp. pekinensis

vegetable

Napa King is a compact, early-maturing napa cabbage variety producing dense, elongated heads with tender, pale green leaves and a crisp texture. This cultivar is ideal for home gardeners seeking quick harvest times and reliable head formation. It's excellent for fresh use and fermentation applications like kimchi and sauerkraut.

Growing Conditions

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Sun: Full sun, 6-8 hours daily; afternoon shade beneficial in hot climates

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Water: Consistent moisture; provide 1-1.5 inches per week. Keep soil evenly moist but not waterlogged. Irregular watering causes bolting and bitter leaves.

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Spacing: 12-15 inches between plants, 24-30 inches between rows inches

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Days to maturity: 45-60 days from transplant; 70-85 days from seed

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Planting depth: ¼ inch for seeds; transplants at soil line

Soil

Type: Well-draining, fertile loamy soil rich in organic matter

pH: 6.0-7.5

Amendments:

compost aged manure peat moss balanced vegetable fertilizer (10-10-10)

Growing Zones

Find your zone →

Thrives in zones 3-9; performs best in cool-season conditions of spring and fall

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

Growth Stages

Seedling

2-3 weeks

Emerges with true leaves appearing after cotyledons. Young plants develop 4-6 true leaves over 2-3 weeks.

Maintain consistent moisture and bright light. Thin seedlings to prevent crowding. Protect from flea beetles with row covers.

Vegetative Growth

3-4 weeks

Plant rapidly develops leafy rosette structure with 8-12 leaves spreading outward. Roots establish deeply into soil.

Water consistently, apply balanced fertilizer every 2-3 weeks. Remove damaged outer leaves. Monitor for pests weekly.

Head Formation

2-3 weeks

Inner leaves begin elongating and overlapping, forming compact heads. Plants become dense and columnar rather than spreading.

Increase nitrogen fertilizer slightly to promote head development. Maintain steady moisture without overwatering. Loosen ties or supports if used.

Head Maturation

1-2 weeks

Heads firm up and pale green outer leaves tighten around a solid, crisp interior. Mature heads are compact, 6-8 inches tall, weighing 2-4 lbs.

Reduce watering frequency slightly but maintain soil moisture. Stop fertilizing. Inspect daily for signs of harvest readiness.

Harvest

Immediate

Heads are firm and ready to cut when pressure reveals tightness. Interior should be pale green and crisp.

Cut heads with a sharp knife at the base in early morning. Use immediately or refrigerate for up to 3 weeks. Can be left in garden briefly after maturity.

Companion Planting

Plan your garden →

Plant with:

beet carrot celery dill garlic lettuce onion potato spinach thyme

Avoid planting near:

broccoli brussels sprouts cabbage cauliflower kale kohlrabi mustard radish turnip

Common Pests

Use floating row covers on young plants; spray neem oil or spinosad; apply diatomaceous earth; intercrop with aromatic herbs
Hand-pick caterpillars; apply Bacillus thuringiensis (Bt); use insecticidal soap; plant nectar flowers to attract parasitic wasps
Spray with strong water stream; apply insecticidal soap; use neem oil; introduce ladybugs or lacewings
Remove infested leaves; apply Bt; use pheromone traps for monitoring; maintain good air circulation
Avoid planting in infected soil; improve drainage; add lime to raise pH; use resistant varieties; practice crop rotation

Uses

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Fresh salads and slaws

Culinary

The tender, crisp leaves are perfect raw in salads, coleslaws, and Asian-style slaws. The mild flavor and delicate texture make it ideal for fresh applications where tender greens are preferred. [source]

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Fermented foods

Culinary

Napa cabbage is the traditional base for kimchi and Asian fermented vegetables. Its high moisture content and tender leaves ferment quickly, producing probiotic-rich foods with complex flavors. [source]

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Stir-fries and cooked dishes

Culinary

Cooks quickly in wok or skillet applications, maintaining slight crispness while absorbing flavors from sauces and seasonings. Popular in Asian cuisine for soups, stir-fries, and braised dishes. [source]

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Nutritional and anti-inflammatory benefits

Medicinal

Rich in vitamin C, vitamin K, and sulforaphane compounds that support immune function and may have anti-cancer properties. Contains antioxidants and dietary fiber beneficial for digestive health. [source]

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Cold storage preservation

Household

Stores exceptionally well in cool conditions (32-50°F) for 3+ weeks when unwashed and wrapped in plastic. Maintains texture and nutritional content better than most brassicas during storage. [source]

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

Harvest Tips

Harvest when heads feel firm to gentle pressure, typically 45-60 days after transplanting. Cut heads at the base with a sharp knife in early morning for maximum crispness. Leave root in ground; secondary smaller heads may form for continued harvest. For fermentation, harvest at full maturity when leaves are densest. Peak flavor occurs when temperatures are cool (50-70°F).

Fun Facts

🌱 Napa cabbage was developed in China over 1,500 years ago but became widely cultivated only in the last 150 years; it's now essential to Korean, Chinese, and Japanese cuisines.
🌱 The name 'Napa' derives from Napa Valley in California, where the variety was popularized in North America, though it originated in China's Napa region.
🌱 Napa King is particularly cold-hardy and can tolerate light frosts once heads form, making it excellent for fall gardens and extending harvest season into early winter.

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