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Herbaceous Perennial

Dianella 'Silver Streak' (v)

An evergreen perennial to around 60cm high, with dense clumps of sword-shaped, stiff grey-green leaves with broad creamy white margins. In late spring or early summer, produces sprays of nodding flowers on delicate stems, with violet sepals encasing white petals striped with green

Synonyms
Dianella tasmanica 'Silver Streak'

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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
Loam
Sand
Moisture
Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Purple White Green Grey Silver White
Summer Purple White Green Grey Silver White
Autumn Green Grey Silver White
Winter Green Grey Silver White
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H3
Botanical details
Family
Asphodelaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Tufted, Clump forming
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling
Genus

Dianella are rhizomatous evergreen perennials with leathery, sword-shaped leaves and sprays of small, starry deep blue flowers followed by long-lasting blue or purple berries

Name status

Unresolved

How to grow

Cultivation

In milder areas, grow outdoors in moderately fertile, well-drained, neutral to acid soil in full sun or partial shade. In areas prone to hard frosts, grow under glass in peat-free, loam-based compost, in full light with shade from hot sun. Water well in growth and keep just moist in winter.

Propagation

Propagate by division in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Coastal
  • Gravel garden
  • Patio and container plants
  • Low Maintenance
  • Conservatory and greenhouse
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

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