Growing calendar
Sow outdoors Mid Mar - mid May
Plant out Jun
Harvest Aug - Mar

How to grow leeks

Sow leek seed 1cm deep in a seedbed.

When seedlings are 20cm tall, transplant them by first trimming the leaf-tips and roots, then drop into holes 15cm deep (use a dibber if you have one) and 15-30cm apart.

Don't fill the holes with soil but water well to help the plants settle.

Harvesting leeks

Lift plants as required during the winter. You can start harvesting them as baby leeks to prolong the harvest period.

Loosen with a fork before lifting.

Tips on growing leeks

Carefully remove weeds from around the leeks and pull soil around the stems when the plants are large to exclude light ('blanch'), keeping them white.

Growing notes
Difficulty Easy
Germination time 14-18 days
Average time to harvest 35 weeks
Equipment needed Dibber
Average plant size 45cm tall, 20cm wide
Family group to grow with Alliaceae: garlic, shallot
Key nutritional content Folate, vitamin C
Seed saving notes Biennial, needs isolation

Download our leek growing card here.

Thanks to Markus Spiske for this beautiful leek image.