Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Cerulean flaxlily

Dianella caerulea

Also called Paroo Lily, Blueberry Lily, Blue Flax Lily, Blueberry Plant, Flax Lily, Cerulean Flax Lily

In Singapore: Paroo Lily, Flax Lily (Cultivated in Singapore)

Cerulean flaxlily
Photo: Ethel Aardvark, CC BY 3.0

Cerulean flaxlily is a hardy, grass-like perennial from eastern Australia, growing about 1 metre tall and wide with blue flowers and indigo berries. It is easy to grow in most conditions and tolerates poor drainage.

Family
Asphodelaceae (Aloe family)
Grows as
Grass, Perennial
Light
Full sun, Part shade
Water
Water regularly, especially in dry spells; it responds well to extra moisture but tolerates some dryness once established.
Soil
Tolerant of most garden soils, including poorly drained ones.
Temperature
Hardy in cool to warm climates; frost tolerant, with exact limits not stated in sources.
How easy
Easy
Safety
Not known to be toxic
Native range
S. New Guinea to E. Australia
Climate
subtropical

About

Dianella caerulea, commonly known as the blue flax-lily, blueberry lily, or paroo lily, is a perennial herb of the family Asphodelaceae, subfamily Hemerocallidoideae, found across the eastern states of Australia and Tasmania. It is a hardy plant, growing to a height and width of around 1 metre with grass-like strappy leaves. Blue flowers in spring and summer are followed by indigo-coloured berries. It adapts readily to cultivation and is commonly seen in Australian gardens and amenities plantings.

How to grow it

Believed to have been first propagated in England in 1783, Dianella caerulea is commonly cultivated in gardens, and is sometimes seen as a low-hedging plant in public spaces and amenities plantings. It is very hardy and long-lived, and suitable for rockeries. It is tolerant of poor drainage and responds well to extra moisture. Plants attract fruit-eating birds and butterflies in garden settings. The smaller denser forms in particular have potential for small gardens.

Where it grows

The plant is distributed through a range in Australian Capital Territory, Victoria, New South Wales, Tasmania, and Queensland. It occurs in a wide range of habitats, from coastal heathland and even sand dunes.

Other Dianella plants

Matted Flax Lily · New Zealand Lilyplant · Black Anther Flax Lily · 'uki'uki · Tasman Flax Lily

[Contains information from Leaf Area Index (LAI) and Heritage Trees from data.gov.sg (National Parks Board), made available under the terms of the Singapore Open Data Licence version 1.0]

Text excerpted from the Wikipedia article Dianella caerulea by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…