The growing leeks quick reference guide below is designed as a quick overview of growing leeks. For more details on the different stages from seed to harvest go to the related pages link.
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Veggie Garden Dairy | |
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Vegetable | Leek |
Also Known As | No other common names known |
Botanical | Family - Alliaceae, Genus - Allium, Species - A. ampeloprasum, Subspecies - A. ampeloprasum var. porrum |
Plant Type | Cool season - biennial - root vegetable |
Frost Tolerance | Hardy |
Planting Position | Sunny position - Will do alright in partial shade, but you'll have to wait longer for a full crop. They require a minimum of 4-6 hours of direct sunlight daily. |
Seed Viability | 2 years |
Germination | 14-21 days at 40-80 F (4-27 C) |
Growing Temp | 50-70 F (10-21 C) |
Seed to Transplant | 6-8 weeks |
Planting Method | Seedling transplants |
When to Plant | Spring |
Time to Plant | As soon as 2 - 4 weeks before the average date of the last 32 F (0 C) freeze in the spring in your area but not before soil temperatures are consistently 40° F (4° C) and above. |
Seed Sowing | Direct sowing leek seeds 1/2 inch (12 mm) deep 2 inch (50 mm) apart in rows 8-16 inches (20-40 cm) apart. |
Plant Spacing | Transplant or thin seedlings 4-6 inches (10-15 cm) apart in rows 8-16 inches (20-45 cm) apart. |
Soil Conditions | Well drained - Moderate to high organic matter - Rich fertility |
Fertilizer | High fertilizer needs, 5-6 quarts per 100 sq feet (5.5-6.6 liters per 9.3 square meters) preplanting of all purpose organic fertilizer 5-5-5, same rate for each side dressing. |
When to Fertilize | 2 weeks before planting - at transplanting use liquid starter fertilizer - side-dress 4 weeks later - again 4 weeks after that |
Days to Harvest | 90-150 days - depending on conditions and variety |
Comments |
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