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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.


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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