Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica - Tree Fern
Dicksonia antarctica
Soft tree fern
The Dicksonia antarctica I purchased from you a few months ago is thriving wonderfully in my daughter's garden. So thank you for this beautiful plant. Best regards
Patrick, 20/09/2025
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Description
Dicksonia antarctica is an arborescent fern, forming a silky trunk topped with a lush, tender green foliage that gives it a strong exotic appearance. It is undoubtedly the hardiest species of the genus.
In nature, this arborescent fern can form a trunk 10 m to 15m (32.8 ft to 49.2 ft) tall and measuring up to 50 cm (19.7 in) in diameter. Away from its natural habitat, it rarely exceeds 5 m to 6 m (16.4 ft to 19.7 ft) in height.
Its fibrous trunk (stipe), brown in colour, measures on average 25 cm to 30 cm (9.8 in to 11.8 in) in diameter, and is traversed by a dense network of black capillary roots. Its growth is slow, averaging 2 cm to 5 cm (0.8 in to 2 in) per year, but its lifespan is extremely long.
The fronds (leaves) of the Dicksonia antarctica are carried at the top of the trunk and measure from 2 m to 3 m (6.6 ft to 9.8 ft) in length, forming a large, spreading tuft that can measure up to 5 m (16.4 ft) in diameter. With a tender green colour, the fronds are tripinnate, shiny, soft to the touch, and have a significant layer of brown bristles at the base. They are evergreen and each has an average lifespan of 2 years when not exposed to severe frost, otherwise they "burn" in winter and are replaced by a new crown of fronds the following spring.
Arborescent ferns are not known for their great hardiness. However, some species, notably Dicksonia antartica and D. fibrosa, are quite hardy without any protection down to -7° C (19.4° F), and even down to -10° C (14° F) if they are in a calm, sheltered location.
Beyond that, winter protection is necessary. It can be as simple as a "straw hat" to shelter the future fronds at the top of the stipe, which is the most sensitive area to the cold. This way, the fern can withstand temperatures down to about -12° C (10.4° F) for a short period. Another solution is to cultivate them in a large pot and bring them indoors in winter in an unheated or minimally heated conservatory.
Dicksonia antarctica - Tree Fern in pictures
Plant habit
Foliage
Botanical data
Dicksonia
antarctica
Dicksoniaceae
Soft tree fern
Australia
Planting and care
Dicksonia antartica grows in partial shade, and tolerates non-burning sun in a protected location in a humid atmosphere. The most important thing is the air humidity, which should be as high as possible as it dislikes drying winds. It likes moist soils, very rich in humus with a tendency to be neutral or acidic. Planting in the ground is mainly intended for oceanic climates, elsewhere grow it in a pot and bring it indoors to a frost-free conservatory during winter. Tree ferns are not known for their great hardiness. However, Dicksonia antartica is quite hardy without any protection down to -7° C (19.4° F), and even down to -10° C (14° F) if planted in a calm, wind-free location. Beyond that, winter protection is necessary. It can be as simple as a "straw hat" to protect the future fronds at the top of the trunk, which is the most sensitive area to cold. This way, the fern can withstand temperatures down to approximately -12° C (10.4° F) for a short period. Another solution is to grow them in a large pot and bring them indoors during winter in a conservatory kept frost-free or minimally heated.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.