Allium fistulosum
TAXONOMY
FamilyAmaryllidaceae
GenusAllium
Zone6
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Plants of the World OnlineABOUT
Allium fistulosum, commonly known as Welsh onion or bunching onion, is a perennial plant in the family Amaryllidaceae. Native to Asia, it is widely cultivated for its edible leaves and stems. Unlike common onions, it does not form bulbs and is known for its hollow, tubular leaves. It thrives in temperate climates and is a bulbous geophyte, meaning it grows from bulbs and is adapted to survive adverse conditions.
ALSO KNOWN AS
Bunching Onion
Cepa Fissilis
Cepa Fistulosa
Cepa Ventricosa
Kepa Fistulosa
Schoenissa Caucasea
Spring Onion
Welsh Onion
Allium bouddae
Allium fistulosum var. caespitosum
Allium fistulosum var. giganteum
Allium globosum
Allium kashgaricum
Allium moly
Allium moschatum
Allium ochroleucum
Allium paniculatum
Allium rupestre
Allium savranicum
Allium saxatile
Allium stevenii
Allium tauricum
Allium tenuifolium
Phyllodolon fistulosum
Porrum fistulosum
OVERVIEW
VPDCalculate
WaterWet
SoilLoamy
LightDirect Bright (6 Hours)
Temperature18° C
Humidity60%
GDD1,050
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Welsh onions require bright, direct sunlight for optimal growth. They thrive in moderate temperatures and prefer evenly moist soil. Regular watering is essential, especially during dry periods. They can tolerate a range of humidity levels but prefer moderate humidity. These plants are relatively easy to care for and can be grown both indoors and outdoors.Harvest
Allium fistulosum, commonly known as Welsh onion or bunching onion, is typically ready for harvest about 70 days after planting. Harvesting can be done when the plants reach a height of 12-15 inches. To harvest, gently pull the entire plant from the soil, ensuring you do not damage the bulbs. For continuous harvest, you can also cut the green tops about an inch above the soil level, which allows the plant to regrow. It is best to harvest in the morning when the plants are most hydrated. Ensure the soil is moist before harvesting to make pulling easier and to reduce stress on the plants.Soil
Welsh onions prefer well-draining loamy soil that is rich in organic matter. The soil should be kept evenly moist but not waterlogged. Good drainage is essential to prevent root rot. A slightly acidic to neutral pH is ideal for these plants.Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 is suitable for Welsh onions. Fertilize the plants every 4-6 weeks during the growing season to ensure they receive the necessary nutrients for healthy growth.Repotting
Repot Welsh onions when they outgrow their current container or every 1-2 years. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Gently remove the plant from its old pot, place it in the new one, and fill with fresh, well-draining soil.Propagation
Welsh onions can be propagated by dividing the clumps or by planting seeds. Division is best done in early spring or late autumn. Carefully separate the clumps and replant them in well-prepared soil. Seeds can be sown directly in the garden or started indoors and transplanted later.Pruning
Regular pruning is beneficial for Welsh onions. Trim the leaves as needed to encourage new growth and to prevent the plant from becoming too leggy. Remove any yellow or dead leaves to maintain the plant's health.Toxicity
Welsh onions are not toxic to pets or humans. They are safe to grow in households with pets and children. However, as with all plants, it is best to prevent pets from consuming large quantities.Additional
Welsh onions are versatile and can be used in a variety of culinary dishes. They are often used in salads, soups, and as a garnish. Regular harvesting of the leaves will encourage continuous growth and provide a fresh supply of greens.REVOLUTIONIZE YOUR PLANT CARE
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