Alphabetical Plant Listing

Cyathea cooperi (Australian Tree Fern)

Australian Tree Fern, Cooper's Tree Fern, Lacy Tree Fern, Scaly Tree Fern, Alsophila cooperi


Fast-growing, award-winning Cyathea cooperi (Australian Tree Fern) is an evergreen tree fern with a very attractive terminal rosette of gracefully arching, lacy, emerald-green fronds, up to 13 ft. long (4 m). The new fronds or 'fiddleheads' are particularly beautiful, curled up with a delicate covering of silky hairs. The undersides of the mature fronds are covered with dusty brown sori aligned in rows. The slender, pale trunk is patterned with contiguous oval scars from older fronds. Incredibly easy to grow, Australian Tree Fern thrives where there are mild winter temperatures, dappled sunlight and plenty of moisture. It enjoys a strong architectural presence and makes a spectacular accent in gardens where winter hardy, and in containers.

  • Winner of the prestigious Award of Garden Merit of the Royal Horticultural Society
  • Grows with an upright habit up to 15-20 ft. tall (450-600 cm) and 10-12 ft. wide (300-360 cm).
  • Easily grown in moist, humus-rich, well-drained soils in part shade. In hot, dry summers water the stem but avoid watering the crown in winter. Will grow without winter protection only in milder areas. Apply liquid fertilizer monthly during the growing season.
  • Great for beds and borders, containers, Mediterranean gardens, city gardens,coastal gardens or informal gardens.
  • No serious disease or pest issues.
  • Dead or damaged fronds may be removed as necessary.
  • Propagate by sowing spores as soon as ripe.
  • Native to eastern Australia.

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Requirements

Hardiness 9 – 11
Climate Zones 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Ferns, Trees
Exposure Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 15' – 20' (4.5m – 6m)
Spread 10' – 12' (3m – 3.6m)
Water Needs Average
Maintenance Low
Soil Type Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Native Plants Australia
Garden Uses Beds and Borders
Garden Styles City and Courtyard, Coastal Garden, Informal and Cottage, Mediterranean Garden

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By Mauro Rodrigues, shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 9 – 11
Climate Zones 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Ferns, Trees
Exposure Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 15' – 20' (4.5m – 6m)
Spread 10' – 12' (3m – 3.6m)
Water Needs Average
Maintenance Low
Soil Type Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Native Plants Australia
Garden Uses Beds and Borders
Garden Styles City and Courtyard, Coastal Garden, Informal and Cottage, Mediterranean Garden

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