- Mature height
- 3m to 6m
- Mature width
- 3m to 4m
Cyathea cooperi, commonly known as the Australian Tree Fern or Lacy Tree Fern, is a fast-growing tree fern with a tall slender trunk and broad, arching, finely-divided fronds. Its soft green canopy creates dense overhead texture, bringing a rainforest atmosphere to shaded and sheltered gardens.
It performs in part shade to full shade and prefers moist, well-drained soils rich in organic matter. Cyathea cooperi suits subtropical to temperate climates and benefits from regular watering, as it has low drought tolerance and needs a sheltered position. It is moderately frost tolerant once mature but requires protection from heavy frost when young.
As a feature plant in shaded beds, beneath existing canopy trees, near ponds and water features, or grouped in rainforest-style understorey plantings, Cyathea cooperi brings vertical interest and movement to tropical, woodland and courtyard landscapes. Its arching fronds and tall trunk give a strong sculptural presence in cool, sheltered settings.
Frequently Asked Questions
About Cyathea cooperi Australian Tree Fern
How tall does Cyathea cooperi grow?
Cyathea cooperi typically grows to around 3 to 6 metres tall with a canopy spread of 3 to 4 metres. It is fast-growing, often putting on 50 cm to 1 metre of height per year in suitable conditions.
Where should I plant Cyathea cooperi?
Cyathea cooperi grows best in part shade to full shade, in a sheltered position protected from strong wind and harsh afternoon sun. It suits shaded beds, spots beneath canopy trees, and rainforest-style understorey plantings.
How much watering does Cyathea cooperi need?
Cyathea cooperi has low drought tolerance and prefers consistent moisture. Keep the soil evenly moist with regular deep watering, and water the trunk as well as the root zone during hot, dry weather to keep the fern healthy.
Does Cyathea cooperi tolerate frost?
Cyathea cooperi is moderately frost tolerant once mature and handles light to moderate frost. Young plants are more vulnerable and should be protected from heavy frost while they establish.
Does Cyathea cooperi flower?
No. As a fern, Cyathea cooperi does not flower. It reproduces through fine brown spores formed on the undersides of its fronds, which is a natural part of its life cycle rather than a floral display.
What soil does Cyathea cooperi prefer?
Cyathea cooperi performs best in well-drained loam or sandy loam enriched with organic matter, in slightly acidic to neutral soil. Heavy clay, alkaline or dry exposed ground should be improved with compost and mulch before planting.
Can Cyathea cooperi be grown in a pot?
Yes. Cyathea cooperi grows well in a large container with a quality moisture-retentive mix, kept in a shaded, sheltered spot. Potted ferns dry out faster, so check moisture often and water regularly through warm weather.
