Allium fistulosum aka Welsh Onion

Taxonomy

Allium fistulosum, commonly known as the Welsh Onion, Bunching Onion, Japanese Bunching Onion, Long Green Onion, and Spring Onion, is a species of perennial plant. It is very similar in taste and odor to the popular common onion, Allium cepa, and can form hybrid plants (known as tree onions). The species possesses hollow leaves (fistulosum means "hollow") and scapes and does not form bulbs. Larger varieties resemble leeks, whereas smaller varieties resemble chives. A. fistulosum can easily multiply to form evergreen clumps, and can also be grown in a bunch as an ornamental plant. Green Onion plants can be grown easily, and offer three forms of the same vegetable - scallions, green onions, and spring onions – which have varying tastes and uses. Lastly, the Long Green Onion is a popular houseplant which needs regular watering and long-lasting, direct light to thrive.

Common names

Welsh Onion, Bunching Onion, Japanese Bunching Onion

How to care for Welsh Onion

Difficulty

If you're looking for a plant that offers a moderate level of challenge, Welsh Onion is a great choice to test your gardening skills.

Water

Welsh Onion should be watered regularly, allowing the soil to dry out between waterings.

Soil

Welsh Onion loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

Welsh Onion requires abundant, bright, and direct light to thrive. The best placement for this plant is within one foot of a window to ensure it receives enough light. If you live in an area with more extreme weather, such as hot summers or cold winters, you may need to adjust the placement of the plant accordingly. During hot summer months, it is important to place the plant away from full sun, as this can cause the leaves to yellow or burn. During cold winter months, it is best to move the plant closer to the window to take advantage of the extra light that can help it survive. By keeping an eye on the current weather in your area, you can make sure your Bunching Onion is always in the right place to thrive.

Toxicity

There is no verified data on the toxicity of this plant in the records of Ploi. If any person, including yourself, a family member, or a pet, consume plant material with an uncertain toxicity level, it is advisable to seek the advice of a healthcare expert.

Humidity

No extra humidity is necessary for the Welsh Onion. Absorption of water by plants is primarily done through their roots, and soil watering is the most effective method to provide humidity to your plants.

Fertilizer

Repotting the Welsh Onion should be done either when it has doubled in size or on a yearly basis, whichever occurs sooner. Fresh potting soil with all the required nutrients, refreshed annually, will provide the plant with all the necessary sustenance, making the use of fertilizer unnecessary. Keep in mind that plants receive their energy from the sun, not fertilizer.

Growth-pattern

New growth will sprout from the top of the Welsh Onion as it grows vertically.

Region of origin

Welsh Onion’s native range is the Northern Hemisphere, South America, and Africa.


More info:
Wikipedia