How to grow Leek 'Large American Flag'
Try to plant in a location that enjoys partial sun and remember to water moderately. Keep in mind when planting that Large American Flag is thought of as very hardy, so this plant will tend to survive through freezing conditions.
Growing Large American Flag from seed
Try to aim for a seed spacing of at least 0.39 inches (1.0 cm) and sow at a depth of around 0.78 inches (2.0 cm). Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.
Transplanting Large American Flag
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Large American Flag is a very hardy plant.
Harvesting Large American Flag