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Products > Plants - Browse By Plant Category > Fern > Cyathea cooperi 'Brentwood'
Cyathea cooperi 'Brentwood' - Australian Tree Fern

Note: This plant is not currently for sale. This is an archive page preserved for informational use.  

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Habit and Cultural Information
Category: Fern
Family: Cyatheaceae (Cyatheaes)
Origin: Australia (Australasia)
Evergreen: Yes
Flower Color: NA
Bloomtime: Not Significant
Synonyms: [Alsophila australis, Sphaeroteris cooperi]
Height: 12-20 feet
Width: 6-8 feet
Exposure: Full Sun
Irrigation (H2O Info): High Water Needs
Winter Hardiness: 20-25 F
Cyathea cooperi 'Brentwood' (Australian Tree Fern) - This robust cultivar of C. cooperi was selected by Fred and Helen Woodley, Los Angeles area fern growers, in the 1970's. It was thought to possibly be a hybrid but current treatment has it as a robust form of the Australian Tree Fern. Like the species it is a fast growing tree fern with light-green fronds. Plant in a bright shade (tolerates full sun along the coast) and provide regular irrigation. Irrigation can be applied to the trunk as well as the surrounding soil but avoid watering the crown as this enhances conditions that promote diseases such as Rhizoctonia or Tip Blight (Phyllosticta). Tip blight has become a more prevalent disease of tree ferns in southern California and seriously disfigures the new growth and older foliage. Given optimum conditions this plant can grow several feet per year and reach 20 feet tall. Hardy to about 20-25 F. It is generally faster growing, has a stouter trunk and a fuller head of leaves than typical Cyathea cooperi. The scales on the trunk are noted as a more coppery color and there is speculation that it is more resistant to Rhizoctonia than the species.  This description is based on our research and observations made of this plant as it grows in our nursery, in the nursery garden and in other gardens that we have visited. We will also incorporate comments received from others and always appreciate getting feedback of any kind from those who have some additional information about this plant, in particular if this information is contrary to what we have written or if they have additional cultural tips that would aid others in growing Cyathea 'Brentwood'.