Autumn Mammoth Hannibal
Allium ampeloprasum
HOW TO GROW LEEK
Start indoors 8–10 weeks before last frost, plant out 2 weeks before frost. For fall harvest, transplant 16 weeks before first frost, without additional protection. In a hoophouse, you can plant 2-3 weeks later. Direct seed as soon as soil can be worked. Transplant when seedlings reach 10-16” tall or are pencil thick, transplant 6” deep. Blanch stems by hilling soil 2–3 times during the summer. Get an extra harvest by cutting a leek an inch or two above the ground instead of pulling the plant. The plant will grow another leek, eventually the plant will bolt. There are two types of leeks, Summer leeks and Over Wintering leeks where temperatures don’t usually go below 15–25˚F. Soil pH 6.2-7.5. Hardiness zones 1-10. Biennial.
Days from maturity calculated from the date of seeding. Average 10,000 seeds per ounce. Average 105M seeds per acre. Federal germination standard: 60%. Usual seed life: 3 years. Isolation distance for seed saving: 1 mile.
Planting Depth 1/4”
Soil Temp. Germ. 50-75˚F
Days to Germ. 8-16
Plant Spacing 6’
Row Spacing 12-24”
Days To Maturity 180
Full Sun, Moist Well Drained
Days from maturity calculated from the date of seeding. Average 10,000 seeds per ounce. Average 105M seeds per acre. Federal germination standard: 60%. Usual seed life: 3 years. Isolation distance for seed saving: 1 mile.
Planting Depth 1/4”
Soil Temp. Germ. 50-75˚F
Days to Germ. 8-16
Plant Spacing 6’
Row Spacing 12-24”
Days To Maturity 180
Full Sun, Moist Well Drained
- 100 Seeds$4.10
- 1000 Seeds$12.50
Early autumn variety with dark green leaves and long, thick, white shank. Vigorous Variety, which bulks up early and stands well in the field. Harvest from August to December. Does not bulb. Tags: Harvest: Late, Color: Green, Season: Spring Fall, Certification: Organic.
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