Difference Between Leeks and Green Onions (With Table)

People often get confused between leeks and green onions. Both Leeks and green onions belong to the Amaryllidaceae, a herb family that also consists of chives and garlic. Though they share the same family, the appearances of both Leeks and Green onions slightly differ, and their taste is somewhat similar.

Leeks vs Green Onions

The difference between Leeks and Green onions is that both are different herbs. The botanical name for green onions is Allium fistulosum, while the botanical name of Leeks is Allium porrum. The appearance of Leeks is that of a large-sized green onion. The average height of Leeks ranges between two and three feet, while green onions can grow up to three feet as a plant.

Leeks are sweet in flavour and somewhat tastes like onion. Leeks are said to have plenty of health benefits. Leeks contain antioxidants and can also prevent cholesterol and blood pressure. Except for the leaves, the light green and white parts (the stem part) are used for the soups. The Leeks are primarily used in soups and fried rice recipes. 

Green onions are also known as Spring onions, and sometimes it is known as Scallions. Interestingly, green onions are considered to contain cancer-preventing elements. Green onions can be eaten raw, and they provide a good amount of Sulphur to the body. Green onions are often used as a garnishing element in soups and pasta.

Comparison Table Between Leeks and Green Onions

Parameters of ComparisonLeeksGreen onions
AppearanceLeeks contain thick dark green leaves in their top part and are light green and white in colour in the middle and its base part (the stem).Green onions have a long stem that is fully light green in colour with a small bulb-like onion in its base.
HeightThe height of Leeks usually ranges between two and three feet.Green onions can reach a height of eighteen feet.
Growing conditionsLeeks are suitable for growing indoor and outdoor. They require less sunlight.Green onions are also suitable for both indoor and outdoor planting. They require direct sunlight.
ConsumptionThe thick leaves are sliced off, and only the middle and base parts are used for consumption. Rarely, the leaves are used.The entire vegetable is used for consumption. The white part gives an onion flavour, and the green part is used mostly for garnishing.
Health benefitsLeeks contain antioxidants and Vitamin K and help in controlling blood pressure and contain cancer-preventing agents.Green onions help in lowering cholesterol and blood pressure. They provide antioxidants for the body.

 What are Leeks?

Leek is a type of onion that has a stem that is light green in the middle and white in the base part. Allium Porrum is the botanical name for Leeks. Occasionally, leeks are used as a substitute for green onions. But in most cases, leeks are primarily used instead of green onions. The upper part of leeks has dark green leaves that are usually sliced off before using it for cooking purposes.

Some even consume the leaves of wild leeks. Leeks have a light flavour of onion and sweeten the dish, and it is often used for side dishes such as creamy soups. Leeks can go well with all herbs and spices in a dish and can give an aromatic flavour when served. Leeks tend to grow on open surfaces. In terms of planting, the seeds can be sowed in a moisturized soil during the spring season.

Leeks can grow up to two to three feet. Leeks require a small amount of sun for their growth, so Leeks are ideal for indoor and outdoor planting. Interestingly in Chinese culture, Leeks symbolizes wealth and are consumed during the Chinese New Year. Another interesting fact is that Leek is a symbol of Wales.

 What are Green Onions?

Green onions are a part of the Amaryllidaceae family. They are also known as Green onions and sometimes are called Scallions. The stem or stalk is usually long in size, and a small bulb-like onion is found in the base part. Green onions taste more like a regular onion but have a less oniony odour. To simply put, Green onions are pre-matured onions.

Green onions are used as a garnishing element in most foods, and sometimes they are sautéed along with other vegetables when preparing dishes like salads. They add flavours to the dish. In terms of health benefits, Green onions consist of essential nutrients to maintain a healthy gut and also contains cancer-preventing agents. They can even aid for weight loss and is one perfect vegetable for daily consumption, and they can be grown in almost every season.

In terms of growing Green onions, they require more sunlight and take up to 4 to 6 weeks. Another method of growing Green onions is soaking the stem in a container of water without removing its bulb and roots. Green onions growing in water takes less time when compared to growing them on the ground surface. Green onions shelf life depends on where it is stored. It can last up to one or two weeks in the refrigerator and two to three days on the shelf.

Main Differences Between Leeks and Green Onions

  1. The botanical name for Leek is Allium ampeloprasum, while the botanical name of green onion is Allium fistulosum.
  2. Leeks require less sunlight when compared to Green onions and can even be grown in partial shade. On the other hand, Green onions require direct sunlight. Both require moisturized soil.
  3. The growth span of Leeks is usually around 75 to 80 days, while Green onions can take up to 70 to 80 days for growing.
  4. The whole part of green onion, except for the roots, are used for consumption. On the other hand, only the stem and base part is used for consumption.
  5. Leeks give a mild flavour of onion with a hint of sweetness. On the other hand, green onions have a very light taste of onion and add flavour to the dish.


Green onions and Leeks can be differentiated in terms of their appearance and taste. Green onions are majorly used for garnishing dishes such as soups and fried rice, whereas Leeks are used in the preparation of soups and salads. Both Leeks and Green onions belong to the Allium family and come under the category of onions.

 Leeks and Green onions can be grown at home. Leeks require little sunlight, while green onions require a large amount of sunlight. Leeks and Green onions consist of a good amount of nutrients and even contains cancer reducing agents. They are often replaced by one another during the preparation of a dish.


  1. https://link.springer.com/article/10.1023/A:1012547004545
  2. https://www.sciencedirect.com/science/article/abs/pii/S0007153685802552
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