Leek – ‘Large American Flag’

Growing Temp 55°F – 75°F
Days to Maturity 90-120 days

Ease of Cultivation and Flavorful Harvest: ‘Large American Flag’ leeks are a popular variety known for their long, tender white stems and mild onion-like flavor. They are relatively easy to grow and can be harvested over an extended period, making them a great choice for gardeners. These leeks are excellent in soups, stews, and various dishes, bringing a subtle sweetness and depth of flavor.

Direct Sowing: For direct sowing, plant ‘Large American Flag’ leek seeds outdoors in early spring, about 1/4 inch deep and 6 inches apart in rows spaced 12-18 inches apart. Germination typically occurs within 10-14 days. Leeks prefer fertile, well-drained soil enriched with organic matter and full sun to partial shade. As seedlings grow, thin them to maintain proper spacing, and keep the soil consistently moist. Expect to start harvesting in 90-120 days.

Early Sowing for Seedlings: To get a head start, sow ‘Large American Flag’ leek seeds indoors 8-10 weeks before the last frost date. Plant the seeds 1/4 inch deep in seed trays filled with a quality potting mix, keeping the temperature around 70°F for germination. Once the seedlings have developed several true leaves and the outdoor temperatures have warmed, transplant them outdoors, spacing them 6 inches apart in rows 12-18 inches apart. Water well after transplanting to help establish strong roots.

Harvesting: ‘Large American Flag’ leeks are ready for harvest when the stems are about 1-2 inches in diameter, usually 90-120 days after sowing. Leeks can be harvested at different sizes, depending on preference, but the flavor is best when they are still young and tender. To harvest, carefully loosen the soil around the base of the plant and pull them up, or use a spade to cut them below the surface. Store leeks in a cool, dark place for up to a few weeks.