American Flag Leek Seeds – 100 Heirloom Vegetable Garden Seeds

American Flag Leek is a classic heirloom variety prized for its long, thick white shanks and excellent winter hardiness. This reliable leek produces tall, blue-green foliage and sturdy stalks that are perfect for soups, stews, and fresh culinary use. A favorite among home gardeners, American Flag Leek offers a mild, sweet onion-like flavor and performs well in a variety of garden settings.

Whether you are growing a dedicated vegetable patch or adding edible plants to an ornamental border, these leek seeds are a rewarding choice. The plants are easy to grow from seed and provide a long harvest season, standing well in the garden into cold weather.

Plant Features

• Heirloom variety known for its long, white shanks and robust flavor
• Cold-hardy and suitable for fall and winter harvests
• Tall, upright growth habit that is easy to blanch for tender stems
• Versatile in the kitchen for soups, sautés, and roasting
• Reliable producer in a wide range of climates

Growing Information

• Botanical Name: Allium porrum
• Plant Type: Biennial grown as annual
• Sunlight: Full sun to partial shade
• Soil: Well-drained, fertile soil rich in organic matter
• Water Requirements: Moderate; keep soil consistently moist
• Growth Habit: Upright, clumping
• USDA Hardiness Zones: 3-10
• Bloom Season: Summer (if left to overwinter)
• Mature Height: 24-36 inches
• Germination Requirements: 65-75°F, 10-14 days
• Spacing: 6-8 inches apart

Planting & Care

Start American Flag Leek seeds indoors 8-10 weeks before the last frost date. Sow seeds 1/4 inch deep in a seed-starting mix and keep the soil consistently moist. Once seedlings are 6-8 inches tall and danger of frost has passed, harden them off and transplant into the garden. Plant in trenches or holes about 6 inches deep, placing seedlings so that only the top few inches of leaves are above the soil. As the plants grow, gradually fill in the trench to blanch the stems and encourage long white shanks.

Keep leeks well-watered and weed-free throughout the growing season. Mulch around plants to retain moisture and suppress weeds. Leeks are relatively pest-resistant but can benefit from crop rotation. Harvest when stalks reach desired size, typically 3-4 months after transplanting. For a continuous supply, sow seeds successively every few weeks.

What's Included

100 American Flag Leek seeds.