Overview

Cordyline australis is a tufted tree in the genus Cordyline, part of the Asparagaceae family, with evergreen foliage. It typically grows around 15 m tall. Cordyline australis grows best in full sun, and tolerates sandy and loamy soils and any pH. Its UK hardiness is rated H5. Suggested uses include architectural, coastal, patio and container plants, sub-tropical, bedding and conservatory and greenhouse. It is native to New Zealand North and New Zealand South.

About

Cordyline australis, commonly known as the cabbage tree, or by its Māori name of tī or tī kōuka, is a widely branched monocot tree endemic to New Zealand.

Wikipedia contributors, CC BY-SA 4.0 — Cordyline australis

About the genus

Cordyline is a genus of about 24 species of woody monocotyledonous flowering plants in family Asparagaceae, subfamily Lomandroideae. The subfamily has previously been treated as a separate family Laxmanniaceae, or Lomandraceae. Other authors have placed the genus in the Agavaceae.

Wikipedia contributors, "Cordyline", CC BY-SA 4.0 — Cordyline

Growing conditions

Best soil and position for Cordyline

Sunlight
Full sun
Soil type
Sandy, Loamy
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing, West-facing
Exposure
Sheltered
UK hardiness
H5

Plant details

Cordyline australis size, habit and characteristics

Plant type
Tree
Habit
Tufted
Foliage
Evergreen
Height
15 m
Suggested uses
Architectural, Coastal, Patio and container plants, Sub-tropical, Bedding, Conservatory and greenhouse
Native to
New Zealand North, New Zealand South

Care notes

Pruning and caring for Cordyline australis

Propagation
Seed, Stem cuttings, Removing suckers in spring
Pest resistance
Glasshouse red spider mite, Scale insects
Disease resistance
Cordyline slime flux, Honey fungus

Frequently asked questions

Where is the best place to plant Cordyline australis?

Cordyline australis prefers full sun. It suits sheltered positions.

What soil does Cordyline australis need?

Cordyline australis grows best in sandy and loamy soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

How big does Cordyline australis grow?

Cordyline australis reaches a height of 15 m.

Is Cordyline australis hardy in the UK?

Cordyline australis has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Cordyline australis?

Seed, Stem cuttings, Removing suckers in spring.

From the Fenn Plants journal