Allium falcifolium
Coast flatstem onion, Sickle-headed garlic, Scythe-leaf onion, Sickle-leaf onion
Allium Allium
A. falcifolium - A. falcifolium is a clump-forming, bulbous perennial with strap-shaped, grey-green leaves and short, upright stems bearing umbels of slender, goblet-shaped, crimson to reddish-purple flowers in spring.
Allium falcifolium is: Deciduous
Clump-forming, Erect flower stem
All parts toxic if ingested.
Reddish-purple in Spring
Grey-green in Spring; Grey-green in Summer
Pest free, may suffer from slugs on new growth.
Onion rot , Downy mildew Onion rot , Downy mildew
No pruning required. If desired, remove leaves only after they have completely died down.
Division
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Allium falcifolium (Sickle-headed garlic) will reach a height of 0.2m and a spread of 0.15m after 2-5 years.
Cottage/Informal, Containers, Coastal, City, Beds and borders, Flower Arranging, Gravel, Rock
Grow in fertile, well-drained soil in full sun. Plant bulbs 5-10cm deep in autumn. Add grit to clay soils to improve drainage. Spreads to form broad clumps.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Full Sun
North, South, East, West
Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Allium falcifolium
Coast flatstem onion, Sickle-headed garlic, Scythe-leaf onion, Sickle-leaf onion
Allium Allium
A. falcifolium - A. falcifolium is a clump-forming, bulbous perennial with strap-shaped, grey-green leaves and short, upright stems bearing umbels of slender, goblet-shaped, crimson to reddish-purple flowers in spring.
Deciduous
Clump-forming, Erect flower stem
All parts toxic if ingested.
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Reddish-purple in Spring
Grey-green in Spring; Grey-green in Summer
Pest free, may suffer from slugs on new growth.
No pruning required. If desired, remove leaves only after they have completely died down.
Division
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Allium falcifolium (Sickle-headed garlic) will reach a height of 0.2m and a spread of 0.15m after 2-5 years.
Cottage/Informal, Containers, Coastal, City, Beds and borders, Flower Arranging, Gravel, Rock
Grow in fertile, well-drained soil in full sun. Plant bulbs 5-10cm deep in autumn. Add grit to clay soils to improve drainage. Spreads to form broad clumps.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Full Sun
North, South, East, West
Sheltered
Hardy (H4)
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4
Allium falcifolium (Sickle-headed garlic)
Asain cotton leafworm; Cluster caterpillar; Fall armyworm; Rice cutworm; Taro caterpiller; Tobacco budworm; Tobacco caterpillar; Tobacco cutworm; Tobacco leaf caterpillar
Spodoptera litura
Insect
Absent
3
3
Regulated pest; frequently intercepted with occasional outbreaks which have been successfully eradicated in the UK.
Allium falcifolium (Sickle-headed garlic)
allium leaf miner
Phytomyza gymnostoma
Insect
Present (Limited)
3
3
Pest of Allium already present in UK and spreading; previous consultation supported awareness raising only; industry should prepare for the event of findings in commercial crops.
Allium falcifolium (Sickle-headed garlic)
Sugarbeet webworm; Weevil; Australian tomato; Weevil; vegetable
Listroderes costirostris
Insect
Absent
2
3
Awareness needs to be maintained due to the risk of entry as a 'hitchhiker' and monitoring of the pest in countries where it is known to be present.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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This plant likes... | Garden match | |
Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
Soil pH: | Acid, Alkaline, Neutral | Tell us... |
Light: | Full Sun | Tell us... |
Aspect: | North, South, East, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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