Tasmanian Tree Fern Dicksonia antarctica
ABOUT
The plant, commonly known as the Tasmanian tree fern, presents a distinctive and prehistoric appearance. The key feature of this plant is its robust trunk, which resembles a thick, shaggy column due to the mass of roots and old leaf bases that cling to it. Atop the trunk sits a crown of large, arching fronds. These fronds are lush and green, imparting a dense and verdant canopy. They're divided into numerous leaflets, giving them a feathery texture. As new fronds emerge, they do so in a curled-up form, known as a fiddlehead, which then unfurl as they mature. The overall impression of the Tasmanian tree fern is of a plant that is both ancient and stately, towering with grace and exuding an air of the primeval. Its fronds create a canopy that casts dappled shade below, offering a habitat and microclimate that support a variety of other organisms. Despite not discussing its exact dimensions, it's clear that the plant has a well-established and prominent presence wherever it grows.
About this plant
NamesSynonyms
Tasmanian Tree Fern, Soft Tree Fern, Man Fern
Common names
Balantium antarcticum, Balantium decurrens, Dicksonia billardierei, Dicksonia billardieri, Dicksonia fibrosa, Dicksonia lathamii, Lophosoria billardierei.
ToxicityTo humans
The Tasmanian tree fern is not known to be toxic to humans. There are no common symptoms of poisoning from this plant because it is not considered poisonous. Therefore, ingesting parts of the Tasmanian tree fern is not expected to cause harmful consequences to human health under normal circumstances.
To pets
The Tasmanian tree fern is not known to be toxic to pets either. Like with humans, there are no reported symptoms of poisoning from this plant in pets, as it is not considered dangerous. Ingesting parts of the Tasmanian tree fern should not pose toxic risks to pets.
CharacteristicsLife cycle
Perennials
Foliage type
Evergreen
Color of leaves
Green
Height
10 15 (3 4.5m)
Spread
6 10 (2 3m)
Plant type
Tree
Hardiness zones
9
Native area
Australia Tasmania
Benefits
General Benefits- Landscape aesthetic - Tasmanian tree fern adds a prehistoric or tropical look to gardens, creating a dramatic visual impact.
- Shade provider - It can provide natural shade in gardens due to its large fern canopy.
- Habitat for wildlife - It hosts a variety of species, including invertebrates, birds, and small mammals, which use it for shelter and nesting.
- Soil erosion control - The spreading roots of Tasmanian tree fern stabilize the soil and help to prevent erosion.
- Conservation and habitat restoration - It is used in projects aiming to restore native vegetation or recreate natural eco-systems.
- Cultural significance - The Tasmanian tree fern has cultural importance to some indigenous groups, and it can be a feature in ethnobotanical gardens or educational exhibits.
- Humidity provider - In grouped plantings, Tasmanian tree ferns can help to maintain a localized humid microclimate, beneficial for other moisture-loving plants.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- The fibrous trunk of the Tasmanian tree fern can be used as a growing medium for orchids and other epiphytes that require well-draining but moisture-retentive substrates.
- Landscaping with Tasmanian tree ferns can create microclimates within gardens, offering shade and cooler temperatures for understory plants.
- The fronds of the Tasmanian tree fern are sometimes used for themed decorations or as natural backdrops in photography due to their lush and prehistoric appearance.
- In crafts, the fronds can be included in the creation of floral arrangements and artistic installations for a touch of greenery.
- In some cultural practices, the soft material of the fern's trunk has been used for padding in the construction of traditional items or dwellings.
- The Tasmanian tree fern can serve as a natural living sculpture in ornamental horticulture, with its picturesque form being a focal point in gardens.
- During colder months, the trunk may be wrapped with insulative materials for protection, and this practice has led to the use of the tree fern as a seasonal indicator in some gardening communities.
- Some Tasmanian tree ferns are used in educational settings to teach botany and evolution, as they represent an ancient lineage of plants.
- The pattern and shape of the Tasmanian tree fern's fronds have inspired designers and artists in creating motifs and patterns for textiles and wallpaper.
- In larger landscapes, these ferns can serve as windbreaks due to their dense foliage and sturdy structure.
Interesting Facts
Feng ShuiThe Australian Tree Fern is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Australian Tree Fern is not used in astrology practice.
Plant Symbolism- Resilience: The Tasmanian tree fern, Dicksonia antarctica, can live for centuries and regrow from its base even after wildfires, symbolizing the ability to endure and recover from adversity.
- Ancient wisdom: As a species that dates back millions of years to the time of the dinosaurs, the Tasmanian tree fern represents ancient knowledge and the continuity of life through changing times.
- Growth and renewal: With its new fronds unfurling in a spiral pattern known as a koru, this plant is often seen as representing new beginnings, personal growth, and renewal.
- Endurance: The Tasmanian tree fern's ability to survive in various climates and its slow growth rate are emblematic of patience and long-term endurance.
- Natural heritage: Indigenous to Australia, Dicksonia antarctica symbolizes the natural heritage and the importance of conserving ancient ecosystems.
- Shelter: The large fronds of the Tasmanian tree fern create a sheltered environment beneath them, symbolizing protection and nurturing.
WaterThe Tasmanian Tree Fern should be watered thoroughly, ensuring that the soil is kept consistently moist but never waterlogged. It's important to water the plant deeply, with around 2 gallons per week, depending on the climate and the season. Increase watering during the warm months when the plant is actively growing, and reduce during the cooler months. Water should be applied directly to the base of the plant and around the soil, avoiding wetting the crown directly, as this can promote rot.
LightTasmanian Tree Ferns thrive in partial shade to dappled sunlight. They should be placed in a spot that mimics their natural understory habitat, away from direct afternoon sun which can scorch their fronds. Morning light or filtered sunlight through a canopy is ideal for maintaining the health and vibrant green color of the fern's fronds.
TemperatureThe Tasmanian Tree Fern prefers a cool to moderate climate, with ideal temperatures ranging between 50°F and 70°F. It can withstand a minimum temperature of around 23°F before the fronds are damaged by frost. In regions experiencing extremes, it is best to provide a sheltered location to protect the fern from temperatures that stray too far from its comfort range.
PruningTasmanian Tree Ferns require minimal pruning, mainly to remove dead or damaged fronds. Pruning can be done in spring or early summer, which helps to maintain the plant's appearance and prevent any potential disease from spreading. Cut the fronds back to the base, and be cautious not to damage the new emerging fronds.
CleaningAs needed
SoilThe Tasmanian Tree Fern thrives in a soil mix that is well-drained yet consistently moist, composed of equal parts peat, pine bark, and either perlite or coarse sand, to facilitate good aeration and water retention. The ideal soil pH should be slightly acidic to neutral, ranging from 5.5 to 7.0.
RepottingThe Tasmanian Tree Fern does not need frequent repotting; it is typically done every 2 to 4 years. Due to their slow-growing nature and the risk of root disturbance, repot only when the plant has outgrown its current container.
Humidity & MistingThe Tasmanian Tree Fern prefers high humidity levels, ideally between 60% to 80%, to replicate its natural rainforest habitat. It is important to maintain consistent humidity for optimal growth and health.
Suitable locationsIndoor
Grow Tasmanian Tree Fern in bright, indirect light with high humidity.
Outdoor
Plant in shady spot with moist soil and shelter from wind.
Hardiness zone
9-11 USDA
Life cycleThe life of Tasmanian tree fern (Dicksonia antarctica) begins with spore germination, which occurs in moist, humid conditions, leading to the growth of a small, heart-shaped gametophyte. This gametophyte develops sex organs that produce sperm and eggs. Fertilization occurs when water allows sperm to swim to the eggs, resulting in a zygote that eventually grows into a new sporophyte—the fern plant we recognize. The young sporophyte starts as a small rosette, which gradually develops into a tall, woody trunk with a crown of large, arching fronds. Over many years, the Tasmanian tree fern reaches maturity and produces spores on the underside of its fronds, completing the life cycle. These spores, when dispersed, can colonize new areas, beginning the cycle anew if they land in suitable conditions.
PropogationPropogation time
Spring-Early Summer
Propogation: The Tasmanian tree fern, Dicksonia antarctica, is commonly propagated by spores, which tend to be the most popular method given the plant's particular reproductive cycle. The best time for this process is during the warmer months when conditions are moist - late spring through summer. To propagate by spores, one should collect the spore-laden fronds as they turn brown and before the spores have dispersed. The spores should then be sown on the surface of a fine, sterilized, damp peat mixture and kept at a consistent temperature of around 68°F (20°C). They require a high level of humidity, which can be maintained by enclosing the container in a clear plastic bag or placing it in a propagator. Patience is key, as spore germination may be slow and it may take several years for a new plant to grow to a substantial size. It is a delicate process that requires attention to detail in order to successfully cultivate a new Tasmanian tree fern.
