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Leek

Allium parrum

Quick Reference

Optimum Soil Temperature 10-25°
Days to Germination 10 – 14
Days to Harvest 90-120 days from transplant
Direct Sow or Transplant Transplant
Distance Apart 20 cm
Soil pH 6.0-7.0
Annual/Biennial /Perennial  Annual (technically biennial, but grown as an annual)

History

Leeks are a member of the allum family.  Naive to the Middle East and Mediterranean they have been consumed for 6000 years, having been adapted to various climates.

Scientists have found dried leeks at Egyptian archeological sites.

Hippocrotes (460BC-370BC) prescribed leeks as a cure for nosebleeds.

Roman Emperor Nero loved leeks, he believed they helped his singing voice, his nickname was Porophagus (leek eater).  In fact the Romans took leeks with them as they expanded their empire

Leeks are the national symbol of Wales.  Legend has it that King Cadwaladr told his soldiers to wear the leeks in battle so that they would be able to see easily who were on their side.  TO this day the leek is on the cap cap badge of the Welsh guards.

Growing

Leeks are generally hardy and cold resistant, can handle a range of temperatures and are fairly disease and pest resistant.  They do well in clay soils but they will struggle in sandy or humus depleted soil. They prefer a soil rich in organic matter

When sowing seed firm the soil well as leeks like to fully encased.  Water in well and keep moist and weed free

Plant seedlings to a depth of about 2/3rd their length    i.e. if a seeding is 15cm, plant 10cm in the ground, 5cm above.

Hill soil around the leeks for longer, whiter stalks.  

Storing harvested Leeks:  Will last up to two weeks in the refrigerator

Feeding:  Apply liquid fertiliser.  Leeks love Potassium

Keep moist, Leeks do not do well in drought  Keep weed free

Fun Facts

Young leeks are tender and their flavour delicate.  Older chunkier leeks are perfect for soups as not only do they add flavour and texture but help thicken the dish.

Leeks can be eaten many ways:  Boiled they have a mild taste, fried they are a crunchy flavour hit.   They can even be added raw to salads

Indonesia is the largest leek producer in the world

They are rich in antioxidants, potassium and iron

Toxic to dogs and cats

The Leek is the symbol of Oltenia region in Romania

Try adding a bit of leek when cooking beans for a flavour burst.

The Welsh believe the leek wards off evil spirits.

Sleeping with a leek under your pillow on St David’s Day will cause you to dream of your future husband.

Problems

Botrytis, grey mould – soft roots with grey or brown mould – more common in storage) Store in dry well ventilated conditions.

Bulbs split at base – heavy rain or watering after a prolonged dry spell. Water frequently in dry weather.

Bolting/Running to seed – seed sown at the wrong time. Sow correct variety at the correct time.

Downy Mildew – Grey or purple spots on leaves. Leaves appear pitted. Usually occurs in wet weather. Improve air circulation and drainage.

Heavy top growth/Leaf droop – Too much Nitrogen or manure.

Soft Bulbs – Excess Nitrogen

Pests

Thrips – blotched silver, grey or white. Leaves may deform in severe cases. More common in dry weather. Keep garden weeded. Keep plants well watered

Companion Planting

Beets, Cabbages, Carrots, Leeks, Lettuce, Marjoram, Parsley, Parsnip, Roses, Silverbeet, Strawberries, Tomatoes

NEVER Beans, Broad Beans, Bush Beans, Climbing Beans,