How to Grow Shanghai Yu Choy
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Shanghai Yu Choy
Brassica rapa subsp. chinensis
vegetableShanghai Yu Choy is a tender, fast-growing Asian leafy green with thick, succulent stems and mild, slightly sweet flavor. It's closely related to bok choy but features broader leaves and stouter petioles. Highly valued in Chinese cuisine, it matures quickly and is ideal for spring and fall harvests.
When should you plant Shanghai Yu Choy in your zone?
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Example Shanghai Yu Choy timeline · Pittsburgh, PA (Zone 6b)
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Plant Shanghai Yu Choy
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 Shanghai Yu Choy
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Shanghai Yu Choy dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9; grows year-round in zones 9-10
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Get my Shanghai Yu Choy timeline →Growth Stages
Seedling
7-10 daysTiny cotyledons emerge with first true leaves following; pale green, delicate appearance
Keep soil evenly moist; provide bright light; thin seedlings to proper spacing once true leaves appear
Vegetative Growth
2-3 weeksStems and leaves expand rapidly; plant develops 4-6 true leaves and thickening petioles begin to form
Water consistently; apply balanced fertilizer every 2-3 weeks; ensure adequate sunlight; monitor for pests
Leaf Development
2-3 weeksBroad, dark green leaves fully form; stems become noticeably thick and succulent with pale green or white coloring
Continue regular watering and fertilizing; provide steady light; avoid nitrogen excess which encourages bolting
Harvest-Ready
Variable based on harvest methodPlant reaches 10-15 inches in height with mature, tender stems and leaves; ready for cutting or full plant harvest
Begin harvesting outer leaves or entire plant; continue watering if harvesting selectively for extended production
Bolting (Late Season)
7-10 days before floweringFlower buds appear; stems become fibrous and bitter; plant transitions to reproductive phase
Harvest immediately when bolting begins if quality is priority; allow to bolt only if seed collection is desired
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Row covers when young; insecticidal soap; neem oil; reflective mulches
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Bacillus thuringiensis (Bt); hand-picking; row covers; neem oil
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Strong water spray; insecticidal soap; neem oil; encourage beneficial insects
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Yellow sticky traps; insecticidal soap; neem oil; improve air circulation
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and
Hand-picking; beer traps; copper barriers; diatomaceous earth
Uses
Stir-fries and Asian dishes
CulinaryShanghai Yu Choy is a staple in Chinese cuisine, prized for its tender stems and mild flavor in quick stir-fries, soups, and steamed preparations. The succulent stems retain a pleasant crunch and absorb flavors beautifully. [source]
Fresh salads and raw preparations
CulinaryYoung, tender leaves and stems can be enjoyed raw in salads with a delicate, slightly sweet flavor. They provide a crisp texture and are lower in bitterness than mature greens. [source]
Nutritional and health benefits
MedicinalRich in vitamins A, C, and K, as well as calcium and fiber. Traditional Chinese medicine values it for supporting digestion and overall wellness. Contains glucosinolates which may have cancer-protective properties. [source]
Soups and broths
CulinaryThe tender stems are particularly valued for adding to soups and broths, where they contribute delicate flavor and pleasant texture without becoming mushy. [source]
Quick cultivation for succession planting
HouseholdIts rapid 45-60 day maturity makes it ideal for succession planting every 2-3 weeks in spring and fall for continuous fresh harvests throughout the season. [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 8-10 inches tall for continuous production, or harvest entire plant when 12-15 inches mature. Harvest in the morning for best crispness and flavor. Cut stems just above soil level. Tender young leaves and stems are most prized; harvest before bolting for optimal texture. Can be harvested repeatedly if outer leaves are taken, extending production for 3-4 weeks.
Fun Facts
- 🌱 Shanghai Yu Choy is specifically named after Shanghai, where it was popularized and is deeply embedded in local cuisine and gardening culture.
- 🌱 Unlike some Asian greens, Shanghai Yu Choy is quite cold-tolerant and can survive light frosts, making it an excellent spring and fall crop in temperate regions.
- 🌱 The plant can regrow after harvest if outer leaves are selectively picked, providing multiple harvests from a single planting over 3-4 weeks.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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