The Australian tree fern is an eye-catching giant with large, dainty leaves that form a gorgeous canopy and give a lush, tropical feel to any landscape or home. Its trunk can reach a height of 15 or even 30 feet given the space and time. It is great for shaded areas, with high humidity.
How to care for Australian Tree Fern
Light. Needs a shaded spot, in partial to full shade.
Water. It performs best kept moist. Water regularly while it establishes and during dry spells.
Soil and feeding. Fertile, sandy loam that drains well suits it. Feed lightly at regular intervals during the growing season.
Size. Usually 10 ft or more; with time the trunk can reach 15–30 ft, with fronds spreading 8–15 ft.
Pruning. Remove spent lower fronds as needed.
Problems to watch. Mites and mealybugs can infest it; spray with Insecticidal Soap. Termites may move into the trunk.
Good to know. It does not tolerate salt soil or salt spray. Hair-like scales on the fronds cling to skin and clothes and can be quite itchy.
Sources: UF/IFAS EDIS FPS-557: Sphaeropteris cooperi, Australian Tree Fern · UF/IFAS Gardening Solutions: Australian Tree Fern
