- You will get 200+ Seeds of Leek American Flag Garden Heirloom NON-GMO Vegetable Seeds. - Leek American Flag Annual Vegetable Seeds. - 200+ Seeds. - Days To Maturity: 140. - Planting Depth: 1/2". - Row Spacing: 14-18". - Plant Spacing: 30-36". - Plant In Full Sun After Chance Of Final Frost. - Sunlight: Partial Shade, Full Sun, Medium Sun. - Cultivating Difficulty: Moderate. - Watering: Medium.