How to Grow Leeks
Fall can be a surprisingly bountiful time on the vegetable plot, but you need to plan ahead carefully for a good crop of vegetables. Start sowing the previous spring, giving your plants all summer and fall to bulk up, and you should have plenty of fresh produce for winter dishes.
When to Start: Spring
At Their Best: Winter
Time to Complete: 30 minutes for sowing; 1-1/2 hours for planting out
- leek seed
- seed tray
- seed compost
- dibber or slim trowel
Sow in Trays
In spring, sow seed thinly across a seed tray and keep in a cold frame or cool, sheltered spot while they germinate. When the seedlings are about 8 inches tall, they are ready for planting out. In colder climates, start indoors in late winter or early spring.
In a well-prepared bed, mark out a line and use your dibber to make holes 8 inches deep and 6 inches apart. Drop a leek into each hole, making sure the roots reach the bottom, and then water them in. There's no need to backfill with soil; this will happen slowly, of its own accord, allowing some light to reach the small leek plants.
Crop Care and Harvest
Leeks require very little attention after planting. You only need to water during prolonged dry spells. The crop will sit happily in the ground until you want to harvest, but the stems are prone to snapping when extracted from frozen soil. If freezing conditions are forecast, lift the leeks beforehand, trim the leaves, wrap them in newspaper and store in a cool place.