Also known as Bunching Onion · Ciboule · Egyptian Walking Onions
Allium fistulosum, the Welsh Onion, is a hardy perennial vegetable grown for its mild, onion-like flavor and hollow green leaves. It's easy to cultivate and can be harves
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Prefers at least 6 hours of direct sunlight daily for best growth.
Consistent Moisture
50% intensity
Keep soil evenly moist, avoiding dryness or sogginess.
Well-drained
50% intensity
Cool to Moderate
50% intensity
Thrives in temperatures between 15-24°C. Can tolerate light frost.
Moderate Feeding
50% intensity
Fertilize monthly during the growing season with a balanced fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | Yes |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist, especially during warm weather and active growth. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.
Reduce watering slightly in cooler months, but do not let the soil dry out completely.
Harvest outer leaves as needed, cutting them near the base. This encourages new growth from the center. For overwintering plants, remove any dead or yellowed foliage in late autumn to prevent disease.
Regular harvesting promotes a continuous supply.
Welsh onions are easily propagated by division or from seed. Divide established clumps every 2-3 years in spring or autumn to rejuvenate the plants.
Sow seeds directly outdoors in spring after the last frost, or start indoors a few weeks prior.
Repot container-grown Welsh onions every 2-3 years, or when they become root-bound. Choose a pot that is slightly larger than the previous one. Ensure the new pot has adequate drainage holes.
This is best done in early spring before active growth begins.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Welsh Onion (Allium fistulosum)
Where Welsh Onion (Allium fistulosum) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Amaryllidaceae |
| Genus | Allium |
| Species | Allium fistulosum |
Similar in genus Allium
Answers based on plant encyclopedia data
