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Plant description:

As beautiful as our indigenous C. dregei, this species grows both faster and taller. The Australian tree fern is single-stemmed, with a tall trunk and an umbrella-like crown of large fronds covered in prickly hairs. It will grow best in a humid atmosphere and in dappled shade, although it can tolerate a fair amount of sun, or even deep shade. C. brownii, a similar Australian tree fern, is more heat tolerant, with bigger, darker green fronds. Both make excellent form plants.


Family: Cyatheaceae

Synonym: Alsophila australis

Botanical Pronunciation: sye-ATH-ee-uh aw-STRAY-liss

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Botanical name

Cyathea australis

Plant Care



Common name(s)

Australian tree fern



It has big, green fronds.

Uses in landscape design

Cyathea australis a dramatic form plant; ideal for large shady areas. Also a perfect plant for containers.

Planting instructions

Planting: This plant likes moist soil that is rich in organic material. Dig a hole 60cm square and deep. Mix two thirds of topsoil with one third compost in the bottom of the hole, add one cup of bone meal or superphosphate and mix well. It transplants well during early spring. This plant does best in dappled shade, but can tolerate a fair amount of sun and shade.
Watering and feeding: It needs to be watered often, and will die if the soil dries out. Fertilise regularly with a nitrogen-rich fertiliser to obtain lush dark green fronds.
Pruning: Not necessary, except for the removal of dead, untidy or damaged fronds.

Growth rate


Other languages

Australiese boomvaring (A)

It has big, green fronds.

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