Large American Flag Leeks

 

source: MIgardener

Sow inside in the first week of April, 2-3 seeds per cell, 1/4″ deep.
Seed to Transplant: 10-12 weeks
Transplant: In June, when approx. 8″ tall and pencil-thick, transplant outdoors 6″ apart, rows 24″ apart in holes dibbled about 6″ deep. Only 1-2″ of leaves need extend above the soil surface. Do not firm soil, allow irrigation or rain to fill in the dibble hole.

Before Planting: Leeks are heavy feeders and require fertile soil (pH of 6.2-6.8) for best results.
Watering: Since leeks have shallow roots, they require lots of water and a weed-free environment. Add mulch to retain moisture and deter weeds.
Fertilizer: A season prior to planting, add compost where the leeks will grow. After planting, feed the leeks every week with liquid fertilizer.
Transplant to Harvest: 100 days- September - until a freeze is suspected to hit.
Harvesting: To harvest, loosen the soil and then lift the leeks out be the roots so you don’t damage the plant. Pick what you need until a freeze is suspected to hit, then harvest all the leeks.