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Allium fistulosum (Spring onion)
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4 hours care
per year
per year
0.9m
Max height
Max height
0.13m
Max spread
Max spread
1-2 years
To maturity
To maturity
Plant details
Botanical name
Allium fistulosum
Other names
Spring onion, Welsh onion, Japanese bunching onion, Japanese leek, Welsh leek, Stone leek, Onion-leek, Scallion
Genus
Allium Allium
Species
A. fistulosum - A. fistulosum is a clump-forming, slowly spreading, evergreen bulbous perennial cultivated as a vegetable with edible, upright, hollow, strap-like, blue-green leaves, erect stems bearing umbels of tiny, pale yellow flowers from late spring into autumn, and small, edible, white bulbs ready for harvest approximately 6-8 weeks after sowing.
Allium fistulosum is: Semi evergreen
Habit
Clump-forming, Upright
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Pests
Resistant to damage by deer.
Specific pests
Eelworm (stem and bulb) , Leek moth , Onion fly , Slugs , Snails Eelworm (stem and bulb) , Leek moth , Onion fly , Slugs , Snails
Diseases
Good tolerance to mildew.
Bolting , Downy mildew , Onion rot Bolting , Downy mildew , Onion rot
General care
Pruning
Break off any flower heads that appear. Harvest as desired.
Propagation
Plant seeds 10cm apart in rows 30cm apart. Plant in spring for a summer/late autumn harvest or in autumn for a spring harvest. Thin out weak seedlings.
Propagation methods
Seed, Sets
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Where to grow
Allium fistulosum (Spring onion) will reach a height of 0.9m and a spread of 0.13m after 1-2 years.
Suggested uses
Add to salads, Beds and borders, Flavouring food and drinks
Cultivation
Prefers fertile, humus-rich, well-drained sandy loam in full sun or partial shade. Tolerates a wide range of soil conditions. Water in dry periods. Stop watering when onions are swollen. Best to rotate site annually.
Soil type
Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Allium fistulosum
Other names
Spring onion, Welsh onion, Japanese bunching onion, Japanese leek, Welsh leek, Stone leek, Onion-leek, Scallion
Genus
Allium Allium
Species
A. fistulosum - A. fistulosum is a clump-forming, slowly spreading, evergreen bulbous perennial cultivated as a vegetable with edible, upright, hollow, strap-like, blue-green leaves, erect stems bearing umbels of tiny, pale yellow flowers from late spring into autumn, and small, edible, white bulbs ready for harvest approximately 6-8 weeks after sowing.
Native to
China
Foliage
Semi evergreen
Habit
Clump-forming, Upright
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Colour
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Pests
Resistant to damage by deer.
Specific pests
Eelworm (stem and bulb) , Leek moth , Onion fly , Slugs , Snails
Diseases
Good tolerance to mildew.
Specific diseases
Bolting , Downy mildew , Onion rot
General care
Pruning
Break off any flower heads that appear. Harvest as desired.
Propagation
Plant seeds 10cm apart in rows 30cm apart. Plant in spring for a summer/late autumn harvest or in autumn for a spring harvest. Thin out weak seedlings.
Propagation methods
Seed, Sets
Monthly care advice
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Where to grow
Allium fistulosum (Spring onion) will reach a height of 0.9m and a spread of 0.13m after 1-2 years.
Suggested uses
Add to salads, Beds and borders, Flavouring food and drinks
Cultivation
Prefers fertile, humus-rich, well-drained sandy loam in full sun or partial shade. Tolerates a wide range of soil conditions. Water in dry periods. Stop watering when onions are swollen. Best to rotate site annually.
Soil type
Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | North, South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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