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Australian Tree Fern
Scientific Name: Cyathea cooperii (F. Muell.) Domin
Synonym: Alsophila australis, Alsophila cooperi, Sphaeropteris cooperi
Family: Cyatheaceae
Australian Tree Fern (Cyathea  cooperii) Recommended Temperature Zone:
sunset: 15-27
USDA: 9b-10

Frost Tolerance: Hardy to 24F (-4C), looks pretty sad in winter

Heat Tolerance: Total shade and abundant water only

Sun Exposure: light shade to shade

Origin: New Zealand

Growth Habits: Tree fern, slowly up to 20 feet tall (6 m), 12 feet spread (3.6 m)

Watering Needs: Abundant water in summer, regular water the rest of the year


I have killed a number of these ferns. They are beautiful, but won't take any sun in summer, and otherwise die without clear reason. If you find a place they like they can grow one foot a year or more. The brown hair on the stems can be irritating to the skin.

Blooming Habits:

Fruiting Habits:

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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