Leeks have broad concave leaves, the sheathing bases of which form a tight cylinder, being the edible part.
Leeks are easier to grow than onions, and more suited to colder climates.
Sow in early autumn and spring. Sow 6 seeds between the distance of 30cm.
They love very fertile soil.
Ensure plenty of water.
During the growing period hill the plants with soil 2 or 3 times, higher with each hoeing. This forces the leaves higher up the plant, the result being extra long blanched stalks, making a much greater edible portion.