American Flag Leek Seeds (Organic)

American Flag Leek (Allium ampeloprasum) is an organic heirloom leek with thick blue-green leaves and large white stems, well suited to fall and winter harvesting.

At a glance

• Variety: American Flag, heirloom (Allium ampeloprasum)
• Type: Organic, biennial
• Days to maturity: 130
• Sun: Full sun
• Planting depth: 1/4"
• Spacing after thinning: 6"
• Height at maturity: 15" to 20"
• Seeds per pack: approx. 100 (about 7,681 per 1 oz)

Flavor profile

Mild and sweet, a gentler alternative to onions that adds depth and aroma to soups, stews, stir-fries, and sautes.

Best for

• Fall and overwintering harvests in cooler climates
• Cold-hardy gardens that see frost
• Small gardens and interplanting, thanks to the upright habit
• Home cooks wanting gourmet leeks for the kitchen
• Soups, stews, and stir-fries

How to grow

Start seeds indoors 6 to 8 weeks before the last frost at a soil temperature of 60 to 80F; germination takes 5 to 12 days. Thin seedlings and transplant 6" apart about 2 weeks before the last frost into well-drained soil rich in organic matter. Keep the stems covered with loose soil to keep them bright white, and mulch heavily in cold climates. Leeks overwinter well in milder regions and can be harvested as needed.

About Grow Organic

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