Osaka Purple
Mustard Greens
Heirloom
Brassica juncea
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Brassicaceae (Mustard family) · Genus: Brassica
Characteristics
Color
GreenPurple
Flavor
Spicy / Pungent
Growth Habit
Dwarf / Compact
Intended Use
Microgreens
Texture
Juicy
About the Plant
Life Cycle
Annual
❄
Hardiness
Cool-Season/Hardy
☀
Exposure
Full Sun, Tolerates Partial Sun
💧
Moisture
Evenly Moist
🌍
Origin
Japan
🌱
Germination
4–10 days
at 40–95 °F
⏳
Days to Maturity
21–45 days
Plant Height
1–1 1/6 ft
How to Plant
🏠
Start Indoors
Not Recommended / Direct Sow Only
🌸
Direct Sow (Spring)
2-4 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
12–24 in
Thin To
6–12 in
🪴
Container Friendly
Yes
🌡
Optimal Soil Temp
55–65 °F
🌡
Soil Temp
40–95 °F
🌡
Air Temp
28–75 °F
When to Plant in Your Area
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