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DIANELLA tasmanica

Image of Dianella tasmanica

Frank Tansey

Family

Liliaceae

Botanical Name

DIANELLA tasmanica

Plant Common Name

Blueberry Flax, Tasmanian Flax Lily

General Description

Tasmanian flax lily is an evergreen perennial native to southeastern Australia and Tasmania. The leaves grow from underground thick stems that grow laterally and spread to form clumps or colonies. Its leathery strap-like blades are often curved. The lavender-blue flowers are held on branched stems above the foliage and appear from spring to summer. Each flower is small, nodding, star-shaped and centered with a flare of bright yellow male structures called stamens. These are followed by persistent berry-like fruits that are round to oblong and violet-blue.

Flax lily is easy-to-grow and prefers partial sun or partial shade and average soil with good drainage. However, it will tolerate full sun if well watered. This lily will withstand some frost and is drought tolerant once established, though it looks best if watered during dry spells. It can be grown outside in mild climates or in containers in colder zones. Use as a ground cover, rock garden plant or in mixed borders.

Characteristics

  • AHS Heat Zone

    12 - 10

  • USDA Hardiness Zone

    12 - 15

  • Sunset Zone

    8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tender Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    24"-48" / 61.0cm - 121.9cm

  • Width

    18"-48" / 45.7cm - 121.9cm

  • Bloom Time

    Early Summer, Summer, Late Summer

  • Native To

    Australia, New Zealand

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Blue, Lavender, Blue Violet

  • Fruit Color

    Blue, Violet

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    Yes

  • Edible Fruit

    Yes

  • Showy Foliage

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bedding Plant, Container, Groundcover, Mixed Border, Rock Garden / Wall, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    Yes