Contents
Description
Allium Fistulosum, also known as Welsh Onion or Japanese Bunching Onion, is a perennial bulbous plant that belongs to the Alliaceae family. It is widely cultivated and consumed in Asia, Europe, and North America. It is valued for its mild onion flavor and is commonly used in stir-fries, soups, salads, and garnishes.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Alliaceae |
| Genus | Allium |
Appearance
Allium Fistulosum grows up to 60 cm tall and has long, cylindrical, hollow, and green leaves that can reach up to 2 cm in diameter. The leaves are arranged in a dense cluster and have a mild onion scent. The plant produces globular, white, or pink flowers that bloom in late summer. The flowers are followed by small, black, round, and shiny seeds that are used for propagation.
Care Guide
Allium Fistulosum is an easy-to-grow plant that requires minimal care. Here are some tips:
- Water: Water the plant regularly, especially during dry spells. Avoid overwatering, as it can cause root rot.
- Fertilization: Apply a balanced fertilizer every two weeks during the growing season.
- Soil: Plant Allium Fistulosum in well-draining soil that is rich in organic matter.
- Sunlight: Plant the onion in a sunny location that receives at least six hours of direct sunlight per day.
- Hardiness Zones: Allium Fistulosum is hardy in USDA zones 3-9.
Common Pests & Diseases
Allium Fistulosum is relatively resistant to pests and diseases, but it can still be affected by the following:
- Onion Fly: A small black fly that lays its eggs on the leaves. The larvae feed on the plant, causing stunted growth and yellowing.
- Thrips: Tiny insects that suck the sap from the leaves, causing them to curl and turn brown.
- Downy Mildew: A fungal disease that causes yellow spots on the leaves and a white powdery coating on the undersides.
- White Rot: A fungal disease that causes the plant to wilt and die. It can survive in the soil for up to 20 years.
Habitat
Allium Fistulosum is native to Asia, but it is now widely cultivated and naturalized in other parts of the world. It grows best in full sun and well-draining soil that is rich in organic matter. It can tolerate a wide range of temperatures and is hardy in USDA zones 3-9.
Question and Answer
Q: Can Allium Fistulosum be grown in containers?
A: Yes, Allium Fistulosum can be grown in containers as long as they are at least 8 inches deep and have good drainage.
Q: Can Allium Fistulosum be grown from seed?
A: Yes, Allium Fistulosum can be grown from seed. Sow the seeds indoors in early spring and transplant them outside when the soil has warmed up.
Q: How often should I fertilize Allium Fistulosum?
A: Apply a balanced fertilizer every two weeks during the growing season.
Q: How long does it take for Allium Fistulosum to mature?
A: Allium Fistulosum can be harvested in as little as 60 days after planting.
Related Plants
- Allium Cepa (Onion)
- Allium Sativum (Garlic)
- Allium Schoenoprasum (Chives)
- Allium Ursinum (Wild Garlic)
References
- “Allium fistulosum.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c816
- “Welsh onion.” Wikipedia. https://en.wikipedia.org/wiki/Welsh_onion
- “Allium fistulosum.” Plants for a Future. https://pfaf.org/user/Plant.aspx?LatinName=Allium+fistulosum
