Greenhouse Gardening – How to Grow Leeks?

Greenhouse Gardening – How to Grow Leeks?

Aug 19, 2017 0 comments

The leek is a firm and crunchy vegetable in the Allium family. It is a cultivar of the broad-leafed wild leek variety. The edible parts of the plant, that contain the nutrients that the plant is famous for, are the sheath bundles formed by the leaves. This plant that is native to the Mediterranean region is rich in dietary fiber, Vitamins A, B6, C, and K as well as Iron, Magnesium, and Manganese. Leek is easy to grow in a greenhouse using the guide below.


  • Start the leek seeds approximately ten weeks before the last frost date and transplant them as soon as they ground is workable or a week after the frost date.
  • Prepare trenches about a foot deep and a foot wide in your greenhouse kit and fill these about halfway with compost or matured manure and transplant the seedlings into the trench spacing them 6 inches apart. The optimal soil temperature should be 77 degrees Fahrenheit.
  • As the plants grow, fill the trenches gradually but ensure the tips of the plants remain exposed.

Tips and Tricks

If you want to harvest your leeks well into the winter then mulch using a heavy cover of hay.

Watering Requirement

Leeks require adequate water to grow strong and healthy. If you live in a dry area with little rain then ensure you soak the plants at least twice a week. Overall, provide about two inches of water every week.

Soil Requirements

Leeks do well in rich, well-drained soil that is slightly acidic. The preferred soil pH is between 6.0 and 6.8.

Lighting Requirements

The plant prefers full sunlight so ensure you buy greenhouse kits that allow for optimum illumination.


The plant matures in about 55 to 80 days after transplanting. Harvest by using a fork to reach under the roots and lift the plants off the loose soil.

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