Allium 'White Empress'
Allium 'White Empress', Allium jesdianum 'White Empress', Allium rosenbachianum 'White Empress'
Allium Allium
'White Empress' _ 'White Empress' is a bulbous perennial forming strap-shaped, grey-green leaves and large, globular clusters of starry white flowers.
Allium 'White Empress' is: Deciduous
Foliage has a nice fragrence
Erect
White in Summer
Grey-green in Summer
Pest free, may suffer from slugs on new growth.
Onion rot , Downy mildew Onion rot , Downy mildew
No pruning required.
Division, Seed
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Allium 'White Empress' (Allium 'White Empress') will reach a height of 0.75m and a spread of 0.5m after 2-5 years.
Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel
Grow in fertile, but well-drained soil. Add grit to clay soils to improve drainage.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Full Sun
South, East, West
Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Allium 'White Empress'
Allium 'White Empress', Allium jesdianum 'White Empress', Allium rosenbachianum 'White Empress'
Allium Allium
'White Empress' _ 'White Empress' is a bulbous perennial forming strap-shaped, grey-green leaves and large, globular clusters of starry white flowers.
Deciduous
Foliage has a nice fragrence
Erect
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White in Summer
Grey-green in Summer
Pest free, may suffer from slugs on new growth.
No pruning required.
Division, Seed
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Allium 'White Empress' (Allium 'White Empress') will reach a height of 0.75m and a spread of 0.5m after 2-5 years.
Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel
Grow in fertile, but well-drained soil. Add grit to clay soils to improve drainage.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Full Sun
South, East, West
Sheltered
Hardy (H4)
Allium 'White Empress' (Allium 'White Empress')
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 'White Empress' (Allium 'White Empress')
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 'White Empress' (Allium 'White Empress')
Nematode; common spiral; Spiral nematode; Steiners spiral nematode
Helicotylenchus dihystera
Nematode
Absent
2
3
Nematode pest unlikely to be very damaging in its own right; but used as a an indicator species to assess compliance of soil requirements of imported plants to be kept under review in light of EFSA evaluation of soil requirements.
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: | South, East, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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