How to Grow Asian Greens

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Asian Greens

Multiple species (Brassica rapa, Brassica juncea, Amaranthus spp., etc.)

vegetable

Asian greens are a diverse group of leafy vegetables commonly used in Asian cuisine, including bok choy, mizuna, tatsoi, and gai lan. They are fast-growing, nutrient-dense crops that thrive in cool seasons and offer multiple harvests. These greens are prized for their tender leaves, mild to spicy flavors, and versatility in cooking.

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

  1. Plant Asian 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 Asian Greens

    Around May 17

    ≈ 30 days after planting

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

Growing Conditions

☀️
Sun: Full sun (6-8 hours daily); partial shade in hot climates helps prevent bolting
💧
Water: Consistent moisture; keep soil evenly moist but not waterlogged. Water 1-1.5 inches per week. More frequent watering needed in hot weather.
📏
Spacing: 4-12 inches apart (varies by variety; bok choy 6-8 inches, mizuna 4-6 inches) inches
📅
Days to maturity: 30-60 days depending on variety and season
🌱
Planting depth: 0.25-0.5 inches; direct seed or transplant seedlings

Soil

Type: Rich, well-draining loamy soil with high organic matter
pH: 6.0-7.5
Amendments:
compost aged manure peat moss balanced fertilizer (10-10-10)

Growing Zones

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Cool-season crops thrive in zones 3-9; spring and fall are ideal in zones 8-10

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

1

Seedling

1-2 weeks

Emergence of first true leaves; seedlings appear delicate with cotyledons followed by characteristic Asian green leaves

Keep soil consistently moist. Provide bright light if starting indoors. Thin seedlings to proper spacing when 2-3 inches tall.

2

Vegetative Growth

2-4 weeks

Rapid leaf development; plant builds rosette of leaves with characteristic shapes (depending on variety)

Water regularly, maintain consistent soil moisture. Apply balanced fertilizer every 2-3 weeks. Monitor for pests closely.

3

Mature Rosette

1-2 weeks

Full-sized plant with multiple leaves ready for harvest; tender and flavorful at this stage

Continue regular watering. Harvest outer leaves to encourage more growth, or cut entire plant at base.

4

Regrowth (after harvest)

2-3 weeks per regrowth cycle

Plant regenerates from base if cut above soil line; produces secondary harvests

Keep soil moist and continue fertilizing. Successive harvests are typically smaller.

5

Bolting

Variable; usually signals end of harvest

Plant sends up flowering stalk; leaves become tougher and more bitter

Harvest immediately before extensive bolting. Plant timing to avoid hot weather triggers bolting.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

fennel tomato potato

Common Pests

  • Use row covers on seedlings; spray neem oil; apply kaolin clay; maintain adequate moisture

  • Handpick; use Bacillus thuringiensis (Bt); install row covers; encourage natural predators

  • Spray with strong water stream; use insecticidal soap; apply neem oil; introduce ladybugs

  • Use yellow sticky traps; spray neem oil or insecticidal soap; maintain good air circulation

  • and

    Hand-pick in early morning/evening; use copper tape barriers; apply diatomaceous earth; provide hiding place traps

Uses

🍳

Fresh and cooked dishes

Culinary

Asian greens are versatile in the kitchen, enjoyed raw in salads, stir-fried, steamed, or in soups. Different varieties offer varying flavors from mild and sweet to peppery and nutty. [source]

🍳

Asian cuisine staple

Culinary

Essential ingredients in Chinese, Japanese, Korean, Thai, and Vietnamese cooking. Used in dim sum, noodle dishes, rice bowls, and traditional soups. [source]

💊

Nutritional and health benefits

Medicinal

Rich in vitamins A, C, and K, calcium, and glucosinolates (compounds with potential anti-cancer properties). High in antioxidants and fiber, supporting overall health. [source]

🏠

Sustainable food production

Household

Fast-growing crops allow multiple harvests per season, making home gardening highly productive. Extends the gardening season into spring and fall. [source]

🦋

Pollinator and beneficial insect support

Wildlife

When allowed to flower, Asian greens attract bees and other pollinators. Flowering plants also host beneficial insects that control garden pests. [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 reaches 4-6 inches tall, or harvest the entire plant at soil line. Cut in morning for best flavor and texture. Most varieties are ready 30-60 days from planting. Frequent harvesting encourages bushier growth and extends harvest season. For best quality, harvest before bolting (which occurs in hot weather).

Fun Facts

  • 🌱 Asian greens are among the fastest-growing vegetables, with some varieties ready to harvest in just 25-30 days, making them perfect for impatient gardeners.
  • 🌱 Bok choy and other Asian brassicas have been cultivated in Asia for over 4,000 years and are now the most widely eaten vegetables globally in terms of total population consumption.
  • 🌱 Many Asian greens are cold-hardy and actually taste sweeter after a light frost, as sugars increase as the plant responds to cold stress.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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