Leek Carentan 2 - Ferme de Sainte Marthe Seeds

'Carentan 2' leek is an improved selection of the hardy, very productive French heirloom. It produces impressively thick, 6-8 cm wide stems topped with green leaves that sometimes grow up to 1 m in height. Excellent flavour. Sow from March to May and enjoy long harvests from September to March.

The leek or Allium porrum is a biennial herbaceous plant belonging to the Alliaceae family. Originally from the Middle East, it was consumed by the Ancient Egyptians as far back as 1500 BC. It was also a popular food in Ancient Rome. Its appearance was similar to that of its cousin the onion, with a very thin shaft and a swollen bulb. By the Middle Ages, leeks were commonly grown throughout Europe with Wales even making the leek its national emblem.

The leek has long, broad, sheathing blue-green or dark green leaves which grow closer together and become whiter in colour towards the bulbous end, forming the so-called “stem”. The stem owes its lighter colour to the fact that it is generally buried (blanched) or shielded from sunlight by the outer leaves. It is thought to be the tastiest part, with its very fine flavour and tender texture. At the end of the second year, leeks produce a flower "stalk" topped by a purple spherical umbel, about the size of a tennis ball.

The leek is a must-have in the kitchen garden! It has a delicious flavour, similar to onion and asparagus (so much so that in France it has even been named the “poor man’s asparagus”!). When cooked, its flavour becomes sweeter. It is generally grown for its white stem and rootlets, although the greener tops can be used in soups. Leek is a popular vegetable throughout the world. In France it is often sautéed in butter then added to quiche, eaten cold with vinaigrette, made into potato and leek soup etc. In Japan it is used in many dishes including sushi, sashimi or stir-fries with sesame seeds or ginger.

It is a very hardy vegetable that can be sown from February to August and harvested nearly all year round. Some winter varieties can withstand temperatures below -15 or even -20° C. Leek is a good source of fibre, vitamins C and B and sulphur compounds. It is an efficient antioxidant, and can help lower blood cholesterol levels and ease digestion.

Harvesting: Harvest your leeks as and when required, generally 5 to 8 months after sowing. Pull gently and firmly on the upper leaves, being careful not to damage the stem. You can use a garden fork or spade as a lever if the leeks are proving too difficult to pull up by hand.

Storage: Leeks will keep for up two weeks in the refrigerator, and almost 3 months in the freezer. Blanch them for a few minutes, run them under cold water, dry them then put them in freezer bags in the freezer for later use.

Good to know: Leeks and carrots are great companion plants as carrot fly hates leeks and leek fly hates carrots! Tomatoes, lettuces and strawberries are also good companion plants for leeks. Avoid growing leeks next to onions, beetroots and beans.

NB. Organic seeds (in French "AB" for "Agriculture Biologique") are produced from plants that aren't treated with phytosanitary products (insecticides, weed killers). The seeds do not undergo post-harvest treatment. They carry the AB label and are approved by Ecocert, an independent structure.