Leek 'Blauwgroene Winter'

Allium porrum 'Blauwgroene Winter'

Leek 'Blauwgroene Winter'

Allium porrum 'Blauwgroene Winter'
Centuries-old variety and a very healthy vegetable!
Leek 'Libertas' winter (Allium porrum) is a frost-resistant variety with heavy, 20-25 cm long stems These leeks are slow to bolt, so they can be harvested up to May. Highly prolific and rich in vitamins.
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Latin name: Allium porrum 'Blauwgroene Winter'
Guarantee: 1 year growth and flowering guarantee
Green stayer: No
Leafs all year: No
Hardy plants: No
Self polinating: No
Edible: Yes
Scented: Not Scented
Grafted: No
Cutting flowers: No
Harvesting: July - May
Planting distance: 10 cm
Planting depth: 10 cm

Leek seed requires no prior treatment but soaking the seed a full 24 hours in lukewarm water can encourage germination. Leeks are slow growers.

How to Sow

Sow at different times for early, mid-season, late and even later harvests.

Leek grows anywhere but do add some lime to a very sandy soil. Loosen the soil with a fork to a depth of at least 30 cm and sow in one of 2 ways:

  1. As soon as all chance of frost is passed, preferably in full sun. Draw a straight furrow, label the row and mix the seed with dry sand then sow as thinly as possible between thumb and forefinger along the row - try to attain a distance of 7-10 cm between seeds. Cover with 2 cm soil, press firmly down and sprinkle with water. Extra rows at 25 cm apart. The seed will germinate in approx. 3-4 weeks. Transplant the seedlings when the stems are pencil thick (see below).
  2. An early start can be achieved in seed trays indoors from the end of January. Tray needs at least 5 cm soil. Sow evenly over the tray and cover with 1 cm soil, press lightly down and sprinkle with water. Stand the tray at room temperature. Transplant the seedlings when the stems are pencil thick.
Thin out and transplant each seedling further up the row when it is as thick as a pencil. Each seedling goes into a hole 20 cm deep, every 10 cm. Do not fill the hole in but water each seedling immediately. This is how to plant leeks. Plant extra rows 25 cm apart.


Water extra during dry periods, keep the bed free of weeds and your leeks will thrive.


Harvest period: July to October (summer crop) October-November (early autumn cultivation), November-December (late autumn crop), from January-May (winter crops), May-June (very early winter crop).

Harvest the year round depending on when sown.

This cropper is practically always ready to harvest - you are only too late when it is showing a flower stalk.

Use a flat tined fork or rake to flip your leek up out of the soil. Shake off any excess soil.


Leek is of member of the Alliaceae (onion) family and is the mildest flavoured among all the onion varieties (common onion being the strongest).

There are two varieties of leek - Early and Late.

The earlies are less hardy although they can withstand a few degrees of frost. Best is to use the right variety for growing in the winter. The late grows slower than the early but is definitely hardy.

Leeks can be harvested as long as the ground is not frozen solid. If left in the ground over the winter, your leeks with shoot again in spring. As long as new leaf keeps appearing you can harvest them. If you wait too long a tall flower stalk with an attractive white flowering ball will appear.

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