Shallot vs. Leek: Is There a Difference?

Written by Em Casalena
Updated: November 30, 2022
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Alliums are a sizable family of edible plants. From the well-known onion varieties to the less well-known yet intriguing varieties of garlic. Even merely for their blossoms, alliums are used by some gardeners as attractive ornamental plants. With an allium, you can accomplish a lot!

Two extremely popular types of allium plants include shallots and leeks. Both of these plants are excellent for use in a wide range of dishes and are often used as a substitute for the other in soups, casseroles, curries, and more. But is there any difference between these two plants? Are they not the same thing?

You might be surprised to learn that shallots and leeks are actually completely different, though they share some similar characteristics. In this guide, we’ll break down the difference between these two delicious edible plants, so you can decide which one to plant in your garden this year.

Comparing Shallot vs. Leek

ShallotLeek
ClassificationAllium cepaAllium porrum
Alternative NamesOnionGarden Leek
OriginSoutheast AsiaCentral Asia
DescriptionAn edible member of the onion family that can grow up to a foot and a half and is often used in cooking.An edible perennial herb that can grow up to three feet and is often used in cooking.
UsesCuisineCuisine
Growth TipsGrow in full sun with fertilizer-rich soil that drains well.Grow in full sun with fertilizer-rich soil that is moist.
Interesting FeaturesThe bulbs of this plant are edible. This plant can grow small clusters of pink or white flowers.While this plant is used mainly for food, its flowers are visually appealing and make it an excellent ornamental plant.

The Key Differences Between Shallot and Leek

Shallots and leeks are native to similar areas and are from the same genus, but they are very different species. To start, leeks and shallots differ primarily in that leeks are botanically known as allium porrum, which has an average height of three feet. Allium cepa is the scientific name for shallots, which only reach a height of about 12 inches on average, though they can grow a bit larger.

Leeks resemble large, green onions; shallots are reddish-brown and more resemblant of garlic and onions. Leeks come in numerous varieties and cultivars, whereas shallots primarily come in just two varieties.

Leeks and shallots are both used in food and cooking, although they are prepared extremely differently. Leeks are quite mild and used for slow cooking while shallots have a modest flavor but a strong aftertaste. After the root piece has been removed, shallots are used whole. Leeks are primarily used for their green leaves, but their bulb can sometimes be used in dishes as well.

Leeks and shallots require comparable conditions to flourish, but they are harvested in slightly different ways. Leeks need greater humidity levels while shallots can be stored at low humidity.

Shallot vs. Leek: Classification

Both shallots and leeks are part of the allium genus, making them close relatives of bulb plants such as pearl onion, garlic, wild leek, chive, and many more. Shallots are classified as allium cepa. Leeks are classified as allium porrum.

Human hand pulling up leeks from the soil

Leeks (pictured) are made up of a collection of leaf sheaths that are edible.

©Freshcly cut leeks on cutting board/Shutterstock.com

Shallot vs. Leek: Description

The shallot is a type of edible onion. The shallot has some bite, but it is smoother and less pungent than the onion. It is also not as powerful as garlic or as mild as a leek. The shallot’s oval-shaped, three-inch-long bulbs are thought to be creamy in color. Red, purple, or brown tinges can be seen on the exterior layer.

Leeks are perennial bulbs that are thought to be a variety of the wild leek. The plant’s edible portion is a collection of leaf sheaths that is occasionally incorrectly referred to as a stem or stalk. The leek generates a long cylinder of coiled green leaf sheaths that are often blanched by pushing soil around them rather than a compact bulb like the onion. Leeks are simple to cultivate from seed and can stand in the field for an extended period of time before being harvested, which can take up to 6 months after planting.

Shallot vs. Leek: Uses

Leeks and shallots are both largely utilized in food. They are both very nutritious vegetables that are rich in vitamins and antioxidants.

One of the most adaptable ingredients you’ll ever come across is the shallot. Similar to how garlic or onions are sautéed at the start of a recipe, they can be used as aromatics to add flavor to a sautéed dish, stock, or sauce. They can even be roasted whole and used as a side dish, just like other vegetables.

Leeks have a flavor that is slightly sweet and similar to other alliums like onions, shallots, garlic, and chives. They are frequently used, like onions, as a flavoring base for soups, stews, and other lengthy-cooking foods. But they can also be relished on their own because of their milder flavor. Leeks can be used as a garnish for soups, salads, meat, and roasted vegetables even if their root end and light green portions are rather fibrous if cut into thin enough slices. Leeks served raw have a pleasant crunch and a mildly sweet bite.

Shallot vs. Leek: Origin

The origin of shallots is most likely in Southeast Asia, from where they moved to India and the Mediterranean region. They were moved by means of trade and regular crop movement. In the Middle East, where they are still present, they flourish as native plants.

Central Asia was the original home of leeks. Since ancient times, they have been widely consumed and have been grown all over the world. It was a dish that the Egyptians served. It was widely employed in Rome, which was the forerunner of modern gastronomy at the time, particularly during large feasts. Since then, leeks have been brought to the United Kingdom, Europe, and North America where they are now produced as crops.

Shallot vs. Leek: How to Grow

Select a sunny area in your garden for the planting of your shallots. Since shallots don’t like to compete with other plants for soil moisture or nutrients, it’s best to have some separation from them. Additionally, the planting location should not be prone to flooding and have excellent soil drainage. You can also grow shallots in containers.

Cloves are the most frequent seed source for shallots. Each clove should be planted in the ground with its thick end downward and its top just above the soil line. Place them in rows six to eight inches apart, with each row being spaced at a distance of 12 to 18 inches. These plants can develop on their own without the aid of a structure.

Leeks can be planted around the time of the final spring frost in your region. A small frost won’t harm young plants, while heavy frosts won’t harm established plants. For your leeks, choose a sunny area with rich, well-drained soil. If you lack enough garden area, raised garden beds and containers are also an option. When growing other plants close to leeks, exercise caution because of their thin roots. Leeks grow best on well-drained loamy or sandy soil with a pH range of slightly acidic to neutral.

A lot of sunlight is preferred by leeks. On most days, they should receive at least six hours of direct sunlight. Weak and floppy growth can be the result of inadequate sunlight. Leeks have thin root systems and require frequent irrigation, around one inch per week, to grow well. Most situations only require weekly deep watering.

Onion shallot bulbs food background. Purple bows

Shallots (pictured) have a brownish and reddish hue to their bulbs.

©iStock.com/A_M_Radul

Shallot vs. Leek: Special Features

Fiber, vitamins A, B6, and C, potassium, folate, manganese, and antioxidants are all abundant in shallots. When the shallot is cut or crushed, the antioxidants are released. Shallots range in hue from golden brown to rose red. The inside meat is pulpy white and occasionally colored green.

Leeks are excellent providers of vitamin B-6, folate, iron, calcium, and manganese and are particularly high in vitamins A and K. Additionally, they provide a lot of fiber and few calories. Leeks are rich in antioxidant polyphenols and act as a mild diuretic as well. Leeks have brilliant green leaves and creamy white bulbs, with little variation in color.

Both leeks and shallots are similar plants, and both are used for a wide range of culinary dishes. While they may not necessarily be the best substitutes for one another, they are often used interchangeably in a wide range of dishes. Still, you could really benefit from growing both of these tasty and healthy alliums in your garden next year!

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The photo featured at the top of this post is © iStock.com/prill


Sources

  1. NCSU Staff, Available here: https://plants.ces.ncsu.edu/plants/allium-cepa/
  2. NCSU Staff, Available here: https://plants.ces.ncsu.edu/plants/allium-tuberosum/
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About the Author

Em Casalena is a writer at A-Z Animals where their primary focus is on plants, gardening, and sustainability. Em has been writing and researching about plants for nearly a decade and is a proud Southwest Institute of Healing Arts graduate and certified Urban Farming instructor. Em is a resident of Arizona and enjoys learning about eco-conscious living, thrifting at local shops, and caring for their Siamese cat Vladimir.

FAQs (Frequently Asked Questions) 

Is there a difference between shallots and leeks?

Yes. They are different varieties, and they also have different flavors and general appearances.

What is the difference in flavor between shallots and leeks?

Shallots have a light, sweet onion flavor with a little bit of bite. Leeks have a much more mild and even sweeter flavor over shallots.

Can leeks be substituted for shallots in recipes?

This all depends on your personal taste. In most cases, yellow onions are a better substitute for shallots and green onions can be a better substitute for leeks.

Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.