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Herbaceous Perennial

Sisyrinchium angustifolium f. album

white-flowered narrow-leaved blue-eyed grass

A compact perennial to 25cm high forming small clumps of narrow, grass-like, dark green foliage and bearing clusters of small, star-like, white flowers with yellow eyes from late spring intil late summer

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring White Yellow Green
Summer White Yellow Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Iridaceae
Native to GB / Ireland
No
Foliage
Semi evergreen
Habit
Tufted, Clump forming
Genus

Sisyrinchium can be annuals or rhizomatous perennials forming a clump of narrowly sword-shaped leaves with erect stems carrying solitary or clustered, star-shaped or bell-shaped flowers in spring or summer

Name status

Correct

How to grow

Cultivation

Grow in a poor to moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. Protect from excessive winter wet. May have the potential to become a nuisance as seeds prolifically

Propagation

Propagate by seed or by division

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Flower borders and beds
  • Garden edging
Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be susceptible to root rot

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