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Growing leeks Guide 
A Quick Overview

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Growing Leeks quick reference guide



Growing leeks Guide

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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Quick Reference Guide






Veggie Garden Dairy
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
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