Non-GMO, Open-Pollinated, Heirloom Carentan Leek Seeds from True Leaf Market. Carentan leeks are an excellent addition to dishes that need an extra oniony zest. Tender white stems grow 8.5 inches long and 2 inches wide. Leaves are a medium dark green. Leeks hail from northern Europe, where they are a cherished staple. The Carentan leek came to the United States in the 1800s and became commercially available in the 1880s. Download Free Vegetable Growing Guide PDF Growing Carentan Leek Seeds Download Free Vegetable Growing Guide PDF Latin Name: Allium porrum Days to Maturity: 95-110 days Hardiness Zone: 3, 4, 5, 6, 7, 8, 9, 10, 11 Planting Depth: 1/2 inches Plant Spacing: 8-10 inches Row Spacing: 2 inches Soil Preference: pH 6.5 to 7 Temp Preference: 60-65 degrees for germination Light Preference: Full sun or light shade Pests/diseases: Leek moths, thrips, and powdery mildew Color: White stem with green leaves Flavor: Onion-flavor Carentan Leek Growth Habits: Sow seeds indoors 8-10 weeks before the last frost date. Plant the open-pollinated, Carentan leek seeds 1/2" deep and thin to about an inch when the seedlings reach 3 inches high. After hardening off, you may transplant them 8-10" apart. To maximize the white part of the leek, mound up soil around each plant. Leeks can stay in the garden until just before the ground freezes. Square-foot Gardening: Transplant the leeks 4 to a square foot. Various Culinary Uses for Carentan Leek: Leeks are a great addition to many dishes. Before using, however, make sure to wash them thoroughly as there may be dirt between the layers of the leek. Once clean, heirloom Carentan leeks are best cooked to release their subtle flavors and soften their fibrous texture. You can use them to make a rich, hearty potato leek soup. Or pair them with asparagus for a great vegetable quiche. You can substitute them for onions in any recipe. Carentan Leek Benefits: Leeks grown from non-GMO, heirloom Carentan leeks are a great source of vitamins A, C, and K. Vitamin A helps protect the eyes from age-related decline. Vitamin K is important in promoting efficient blood clotting. Leeks also contain iron, important for red blood cells, and manganese, which assists in regulating nerve functions and the brain. Finally, leeks are a good source of fiber. Seeds Per Package: 1.5 g - Approximately 475 Seeds 0.25 oz - Approximately 2,245 Seeds 1 oz - Approximately 8,980 Seeds 4 oz - Approximately 35,900 Seeds 1 lb - Approximately 143,600 Seeds 5 lb - Approximately 718,000 Seeds 25 lb - Approximately 4,310,000 Seeds