American Flag
Leek · Winter
Allium ampeloprasum
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Amaryllidaceae (Onion family) · Genus: Allium
About
Leek American Flag is a sweet member of the onion family. It has large, white stems that often reach 8 to 10 inches long and 2 inches across. These stems are tender and have excellent flavor, making them ideal fresh or cooked in soups.
Characteristics
Color
White
About the Plant
Life Cycle
Biennial
❄
Hardiness
Cool-Season/Hardy
☀
Exposure
Full Sun
💧
Moisture
Keep Moist
🌱
Germination
10–15 days
at 40–90 °F
⏳
Days to Maturity
130–150 days
Plant Height
8–10 in
How to Plant
🏠
Start Indoors
8-10 Weeks Before Last Frost
Transplant
2-4 Weeks Before Last Frost
Planting Depth
0.5 in
Seed Spacing
2 in
Row Spacing
15 in
Thin To
4 in
🌡
Optimal Soil Temp
65–85 °F
🌡
Soil Temp
40–90 °F
🌡
Air Temp
20 °F
When to Plant in Your Area
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Planting and Care Instructions
Start seeds indoors in a sunny location 8 weeks before the last frost. Or, sow directly in the garden every 2 inches and cover with soil. Thin to 4 inches apart when 4 inches tall. Note: As they mature, they should be earthed up and blanched like celery.
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