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Allium lusitanicum (Portuguese allium)

Other names: Allium 'Summer Beauty', Ornamental onion 'Summer Beauty', Ornamental garlic 'Summer Beauty', Allium senescens subsp. montanum, Allium angulosum 'Summer Beauty', Allium lusitanicum 'Summer Beauty', Mountain garlic , Allium senescens 'Montana'

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Species
A. lusitanicum is an upright, clump-forming, bulbous perennial with strongly aromatic, linear, mid-green leaves and sturdy, hollow stems bearing dense, rounded umbels of purple-pink to pale pink flowers in summer
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
0.4 m 0.3 m 2-5 years
1 ft 0 ft 2-5 years

Where to grow

Soil type
  • Chalky
  • Clay
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Full Sun
Aspect
  • East
  • West
  • South
  • North
Exposure
  • Sheltered

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Additional plant details

Cultivation

Plant bulb (with rhizomes) at or just below the soil surface in spring in fertile, well-drained soil in sun. Benefits from light afternoon shade in areas with hot summer. Tolerates a wide range of soil types. Add grit to clay soils.

Suggested uses

Gravel, Architectural, Flower Arranging, Beds and borders, Cottage/Informal, Bees (attract & feed bees)

UK hardiness

H6

USDA zones

Zone 5, Zone 6, Zone 7, Zone 8, Zone 9

Sunset zone

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Clump-forming, Erect flower stem

Native to

Europe

Drought tolerant

No

Flood tolerant

No

Toxicity

Not toxic

Plant care

Pruning

Deadhead regularly. If desired, remove leaves only after they have completely died down.

Propagation methods

Seed, Division

Propagation

This species forms a weak bulb on a rhizome. Lift and divide rhizome clump in spring.

Pests

Pest free, may suffer from slugs on new growth.

Diseases

Onion rot

Downy mildew

Deadhead regularly (optional)

Divide and replant in spring

Add grit to clay soils to improve the drainage

Separate bulb offsets

Remove faded or dead foliage (optional)

Sow seeds in a cold frame in spring

Other plants

Plants in this Genus (217)

Allium

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Allium sphaerocephalon
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Allium sphaerocephalon Roundhead leek
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Allium siculum Mediterranean Bells
Allium siculum subsp. dioscoridis
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Allium siculum subsp. dioscoridis Bulgarian honey garlic
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Allium cepa var. aggregatum 'Jermor'
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Allium cepa var. aggregatum 'Jermor' Shallot 'Jermor'
Allium cepa 'Red Baron'
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Allium cepa 'Red Baron' Onion 'Red Baron'
Allium cepa 'Sturon'
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Allium cepa 'Sturon' Onion 'Sturon'
Allium fistulosum 'Ishikura'
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Allium fistulosum 'Ishikura' Spring onion 'Ishikura'
Allium cepa (Cepa Group) 'Ramrod'
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Allium cepa (Cepa Group) 'Ramrod' Salad onion 'Ramrod'
Allium stipitatum 'Mount Everest'
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Allium stipitatum 'Mount Everest' Allium 'Mount Everest'
Allium cepa 'Bedfordshire Champion'
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Allium cepa 'Bedfordshire Champion' Onion 'Bedfordshire Champion'
Allium karataviense 'Ivory Queen'
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Allium karataviense 'Ivory Queen' Kara Tau garlic 'Ivory Queen'
Allium nigrum
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Allium nigrum Black garlic
Allium oreophilum
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Allium oreophilum Allium oreophilum
Allium schubertii
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Allium schubertii Schubert's allium
Allium 'White'
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Allium 'White' Allium 'White'
Allium cernuum
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Allium cernuum Lady's leek
Allium neapolitanum Cowanii Group
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Allium neapolitanum Cowanii Group Daffodil garlic Cowanii Group
Allium vineale 'Hair'
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Allium vineale 'Hair' Crow garlic 'Hair'
Allium karataviense
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Allium karataviense Kara Tau garlic
Allium unifolium
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Allium unifolium One-leaf allium
Allium 'Firmament'
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Allium 'Firmament' Allium 'Firmament'
Allium triquetrum
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Allium triquetrum Three-cornered leek
Allium cepa
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Allium cepa Onion
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Companion plants (1)

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Echinacea purpurea (any variety)
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Echinacea purpurea (any variety) Coneflower (any variety)
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