How to Grow Bok Choy

Bok Choy

Brassica rapa subsp. chinensis

vegetable

Bok choy is a fast-growing Asian leafy green characterized by dark green leaves and white or pale green stalks. It is prized for its tender, mild flavor and crisp texture, making it popular in stir-fries and Asian cuisine. The plant is cool-season and matures quickly, often ready to harvest in 30-50 days.

Looking for a specific variety?

Shanghai Mizuna Pak Choi Purple Flowering Canton Summer Crisp

Growing Conditions

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Sun: Full sun to partial shade; 6+ hours of sunlight daily (afternoon shade beneficial in hot climates)

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Water: Consistent moisture; keep soil evenly moist but not waterlogged. Water deeply 1-2 times weekly depending on weather. Inconsistent watering can cause bolting or split stems.

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Spacing: 6 inches

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Days to maturity: 30-50 days

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Planting depth: 0.25 to 0.5 inches

Soil

Type: Well-draining loamy soil rich in organic matter

pH: 6.0-7.5

Amendments:

Compost aged manure peat moss or coco coir balanced fertilizer (5-5-5 or similar)

Growing Zones

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Best in zones 4-9; thrives in cool to moderate climates

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

Growth Stages

Germination & Seedling

7-14 days

Seeds sprout in 4-7 days. Seedlings emerge with two cotyledons and develop their first true leaves (heart-shaped) within 1-2 weeks.

Keep soil consistently moist but not waterlogged. Provide bright light to prevent leggy seedlings. Thin seedlings to proper spacing when they have 2-3 true leaves.

Vegetative Growth

2-3 weeks

Plant develops multiple leaves and the characteristic rosette form with white or pale stalks emerging. Rapid growth occurs during this phase.

Maintain consistent watering and cool temperatures (60-70°F ideal). Mulch to retain moisture and regulate soil temperature. Side-dress with nitrogen-rich fertilizer or compost mid-growth if needed.

Pre-Maturity

1-2 weeks

Plant reaches near full size with dense foliage and thick, crisp stalks. Leaves are dark green and turgid.

Continue consistent watering. Monitor for bolting in warm conditions—harvest earlier if flower buds form. Protect from intense afternoon heat with shade cloth if necessary.

Mature/Harvest Ready

Variable; begins at day 30-50

Plant is 6-12 inches tall (depending on variety) with fully developed white stalks and dark green leaves, ready for harvest.

Harvest when plants reach desired size; do not wait for bolting. Cut at soil level or harvest outer leaves only for continued production.

Companion Planting

Plan your garden →

Plant with:

Carrots Beets Radishes Lettuce Spinach Marigolds Nasturtiums Garlic Onions Chamomile

Avoid planting near:

Other brassicas (cabbage, broccoli, cauliflower) Fennel Dill Tomatoes Pole beans

Common Pests

Use row covers or netting; apply Bt (Bacillus thuringiensis) spray; remove affected leaves by hand. Encourage parasitic wasps.
Use row covers on young plants; spray with neem oil or insecticidal soap; dust with diatomaceous earth. Remove affected leaves.
Strong water spray to dislodge; spray with neem oil or insecticidal soap; introduce ladybugs or lacewings.
Use yellow sticky traps; spray with neem oil or insecticidal soap; increase air circulation.
Avoid planting other brassicas in same location for 3-4 years; improve drainage; raise soil pH to 7.0+; use resistant varieties if available.

Uses

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Stir-fries and Asian cuisine

Culinary

Bok choy is a staple in Asian cooking, prized for its tender leaves and crisp stalks that retain texture when quickly cooked. Both the leafy tops and crunchy stalks can be used raw in salads or cooked in stir-fries, soups, and sautés. [source]

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Nutritional powerhouse

Culinary

Bok choy is rich in vitamins A, C, and K, calcium, potassium, and antioxidants. It provides excellent nutritional value with very low calories, making it ideal for health-conscious diets. [source]

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Traditional medicine uses

Medicinal

In Traditional Chinese Medicine, bok choy is valued for its cooling properties and is used to support digestion and overall wellness. Contains glucosinolates with potential anti-inflammatory benefits. [source]

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Fresh and versatile produce

Household

Bok choy stores well in the refrigerator for up to two weeks when kept in a plastic bag, making it a convenient addition to meal planning and reducing food waste. [source]

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Pollinator and beneficial insect support

Wildlife

If allowed to flower, bok choy produces small yellow flowers that attract bees and other pollinators, supporting 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

Harvest when plants are 6-12 inches tall, before flower buds appear (bolting). Cut the entire head at soil level with a sharp knife, or harvest outer leaves individually for continued production. Early morning harvest ensures maximum crispness. Most tender and flavorful when harvested young. Can be harvested as baby bok choy at 20-30 days for more tender leaves.

Fun Facts

🌱 Bok choy originated in China over 6,000 years ago and remains a cornerstone of Chinese cuisine and traditional medicine.
🌱 The name 'bok choy' comes from Cantonese and translates to 'white vegetable,' though modern varieties come in deep green and even purple-stalked forms.
🌱 Bok choy is one of the fastest-maturing vegetables in the garden, sometimes producing harvestable heads in just 20-30 days in optimal conditions.

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