Cyathea cooperi
Australian tree fern
Australian tree fern. Thin trunk, lacy apple-green fronds in parasol crown. Regrows quickly from frost.
 Height | 12–20ft |
|---|---|
 Width | 10–15ft |
 Tolerates | Coast, Cool Summers, Fog, Moist Soil, Pots |
 Water needs | High |
Water this plant regularly. The soil surface should feel damp or just barely dry at all times. Usually this will mean once or twice a week in dry weather. Use drippers, emitters, or a slow stream of water so that it doesn't run off; allow the water to trickle all the way down through to the deepest layers of soil. In a pot slowly water the entire surface until water comes out of the bottom of your pot. Tree ferns appreciate moisture in their crown, which can be achieved with overhead water or a dripper run up into the crown of the plant. | |
 Hardy to | 25°F |
 Exposure | Full Shade – Part Shade |
 Plant traits | Foliage Feature, Tropical, Trunking |
 Indoor / outdoor | Outdoor |
 Drainage | In Ground: Planting Mix, In Pots: Potting Soil, Tolerates Heavy Soil, Tolerates Sandy Soil |
 Origin | NE Australia |
 California native | No |
 Sunset zones | 13–24, H2 |
Growing Notes
Trim off older fronds when they begin to look ratty and later, but allow the stubs to come off on their own with time.
Can be grown in full sun if close to the coast in marine influence zones.
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The above information reflects the observations of Grubb and Nadler and our extended plant community. We always consider input from fellow horticulturists and welcome feedback from those with additional information on the culture of this plant.
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