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Herbaceous Perennial

Asphodelus fistulosus

onion weed

A clump-forming perennial to around 60cm tall with tufts of hollow, rounded, grass-like leaves to 30cm long and hollow stems bearing racemes of white to pale pink flowers with a reddish-brown stripe down the centre of each petal

Other common names
onion asphodel
Synonyms
Asphodelus tenuifolius
Asphodeline fistulosus
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring White Red Brown Pink Green
Summer White Red Brown Pink Green
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Asphodelaceae
Native to the UK
No
Foliage
Deciduous
Habit
Tufted
Genus

Asphodelus are rhizomatous perennials and annuals with clumps of linear basal leaves, and leafless stems bearing racemes or panicles of star-shaped, white or pink flowers, each tepal with a green or brown central vein

Name status

Correct

Plant range
Macaronesia, Medit. to Arabian Peninsula, Mauritius

How to grow

Cultivation

Grow in moderately fertile, well-drained soil in full sun. Can die back in heavy, poorly-drained soil

Propagation

Propagate by seed or by division after flowering

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • Mediterranean climate plants
  • Flower borders and beds
Pruning

Flower stems can be cut back after flowering, or left to display the attractive seed pods

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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