How to Grow Da Ye Gai Lan
Da Ye Gai Lan
Brassica oleracea var. alboglabra
vegetableDa Ye Gai Lan, also known as Chinese broccoli or large-leaf gai lan, is a leafy cruciferous vegetable prized for its tender stems, nutritious leaves, and small flower heads. It has a mild, slightly sweet flavor and is a staple in Asian cuisine. The plant is fast-growing and cold-tolerant, making it ideal for cool-season gardening.
When should you plant Da Ye Gai Lan in your zone?
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Example Da Ye Gai Lan timeline · Pittsburgh, PA (Zone 6b)
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Plant Da Ye Gai Lan
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Da Ye Gai Lan
Around May 27≈ 40 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Da Ye Gai Lan dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9; prefers cool seasons (spring and fall)
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Seedling
2-3 weeksSmall cotyledons emerge with 2-4 true leaves developing. Plant is delicate and low to the ground.
Keep soil consistently moist but not waterlogged. Provide bright light and maintain cool temperatures (60-70°F). Thin seedlings to proper spacing once true leaves appear.
Vegetative Growth
3-4 weeksRapid expansion of leaves and stems. The plant develops its characteristic dark green, slightly wavy foliage and thickens at the base.
Maintain consistent watering and fertilize every 2-3 weeks with balanced fertilizer. Ensure adequate sunlight. Monitor for pest activity.
Stem & Flower Development
2-3 weeksCentral stems thicken and small yellow-green flower buds begin to form at the top. Side shoots may develop from leaf axils.
Continue regular watering and fertilization. Do not allow soil to dry out. Harvest baby florets as they appear to encourage more side shoots.
Flowering & Harvest-Ready
2-4 weeksSmall broccoli-like flower heads form with tender stems. Leaves remain edible and nutritious. Plant reaches optimal harvest size (8-12 inches tall).
Harvest main head and side shoots regularly to prolong production. Keep harvesting even if flowers begin to open. Continue watering consistently.
Bolting & End of Season
1-2 weeks before declineIf left unharvested, flower buds open into small yellow flowers. Plant begins to decline in hot weather or after extended production.
Plant will become woody and bitter if allowed to bolt. Plan for succession planting. In spring, may regrow from lower stems if kept cool.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick caterpillars; use row covers; spray with Bacillus thuringiensis (Bt); introduce parasitic wasps
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Spray with strong water jet; use insecticidal soap; introduce ladybugs and lacewings; neem oil
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Row covers on young plants; diatomaceous earth; neem oil; spinosad; avoid stress to plants
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Hand-pick; Bt spray; row covers; parasitic wasps; neem oil
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Avoid replanting brassicas in same soil; improve drainage; add lime to raise pH; solarize soil; use resistant varieties if available
Uses
Stir-fries & Asian dishes
CulinaryDa Ye Gai Lan is the traditional green vegetable for Cantonese stir-fries. Both the tender stems and leaves are edible, and the vegetable absorbs flavors beautifully when cooked quickly over high heat with garlic and oyster sauce. [source]
Steaming & simple preparations
CulinaryThe mild, slightly sweet flavor shines when simply steamed or blanched and served with soy sauce, sesame oil, and garlic. Stems and leaves have a tender-crisp texture when cooked briefly. [source]
Nutritional & anticancer compounds
MedicinalLike other brassicas, gai lan contains glucosinolates that convert to isothiocyanates, compounds studied for potential anti-cancer properties. Also rich in vitamins A, C, K, and calcium. [source]
Quick garden production
HouseholdDa Ye Gai Lan is one of the fastest-maturing Asian greens, producing harvestable crops in 40-60 days. Perfect for succession planting and extends the growing season in spring and fall. [source]
Pollinator support
WildlifeWhen allowed to flower, the small yellow blooms attract bees and other pollinators. Letting some plants bolt provides late-season forage for beneficial insects. [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 the main central head when flower buds are tight and green, typically 40-60 days after transplanting or 55-75 days from seed. Cut 2-3 inches below the flower head with a sharp knife. Harvest side shoots as they develop (about 1/2 inch diameter) for extended production. Leaves can be harvested at any time but are best when young and tender. Morning harvest yields the crispest product. Continue harvesting regularly to encourage more side shoot development; plants may produce for 4-8 weeks with successive harvesting.
Fun Facts
- 🌱 Da Ye Gai Lan means 'big leaf mustard' in Cantonese and is sometimes called 'Chinese broccoli' though it's more closely related to broccoli rabe; it's a distinct cultivar of Brassica oleracea.
- 🌱 The plant can tolerate light frosts (down to 28-32°F) and often tastes sweeter after a light frost due to increased sugar concentration as a natural antifreeze mechanism.
- 🌱 Da Ye Gai Lan was traditionally grown in Hong Kong and southern China but has become increasingly popular in Western gardens due to its short growing cycle and exceptional productivity with successive harvesting.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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