50-Day
Asian Greens · Choy Sum / Yu Choy
Open Pollinated
Brassica rapa var. parachinensis
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Brassicaceae (Mustard family) · Genus: Brassica
Characteristics
Color
Green
Intended Use
Leaf Harvest
Texture
Tender
About the Plant
Life Cycle
Biennial
Harvest year 1, seeds year 2
❄
Hardiness
Cool-Season/Half-Hardy
☀
Exposure
Full Sun, Tolerates Partial Sun
💧
Moisture
Evenly Moist but Well Drained
🌱
Germination
4–10 days
at 40–95 °F
⏳
Days to Maturity
50 days
Plant Height
1–1 1/2 ft
How to Plant
🏠
Start Indoors
Not Recommended / Direct Sow Only
🌸
Direct Sow (Spring)
0-2 Weeks Before Last Frost
🍂
Direct Sow (Fall)
6-8 Weeks Before First Frost
Planting Depth
1/4–1/2 in
Seed Spacing
1–2 in
Row Spacing
12–18 in
Thin To
4–6 in
🌡
Optimal Soil Temp
55–75 °F
🌡
Soil Temp
40–95 °F
🌡
Air Temp
32–77 °F
When to Plant in Your Area
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