Dianella tasmanica Wyeena ('Tas300')

RHS Plant Profile
white striped Tasman flax lily

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white striped Tasman flax lily RHS / Joanna Kossak
white striped Tasman flax lily RHS / Joanna Kossak

Synonyms

Dianella tasmanica 'Tas300'

Herbaceous Perennial
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A rhizomatous, clump-forming evergreen perennial with tough, green leathery grass-like foliage, which turns red in winter, and branched panicles of small, star-shaped blue flowers with yellow stamens in summer. The flowers are followed by long-lasting blue or purple berries

Position

Full sun, Partial shade

Soil Types

Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
1-1.5 metres

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asphodelaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy, Clump forming
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
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
Trade

How to Grow

Cultivation

Grow in moderately fertile, humus-rich, well-drained, neutral to acid soil in a sheltered site in full sun or partial shade

Propagation

Propagate by seed in containers at 13-16°C (55-61°F) in spring. Divide rhizomes in mid-spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free