Tasmanian Tree Fern

Tasmanian Tree Fern (Dicksonia antarctica)

Tasmanian Tree Fern is a cool-climate tree fern prized for a fibrous trunk crowned by a wide canopy of arching fronds; it lends instant, prehistoric character and gentle shade to sheltered, moisture-rich gardens and large containers in bright, indirect light.

Distinctive Features

Thick, brown trunk stores moisture and supports a symmetrical rosette of finely divided fronds; tolerates cool conditions better than many tree ferns when kept evenly moist and wind-sheltered.

Growing Conditions

• Sun Exposure: Bright, indirect light to dappled shade; avoid harsh midday sun and drying winds.
• Soil: Rich, well-drained but moisture-retentive mix with high organic matter; keep crown slightly elevated.
• Water: Keep evenly moist; soak the trunk and root zone, never allow the crown to fully dry.
• USDA Hardiness Zones: 8 to 10 outdoors; protect in colder regions or overwinter under cover.
• Humidity: Medium to high with gentle air movement.
• Mature Size: Typically 6 to 12 ft tall in cultivation with 4 to 8 ft fronds; larger in ideal climates.
• Soil pH: Slightly acidic to neutral, about 6.0 to 7.0.

Ideal Uses

• Focal Point: Bold trunk and sweeping fronds create a dramatic centerpiece in shaded courtyards.
• Tropical Shade Garden: Provides light canopy over ferns, hostas, and understory companions.
• Patio Container: Thrives in large tubs where water and shelter can be controlled.
• Woodland Accent: Layers fine texture beneath taller trees in frost-free or protected sites.

Low Maintenance Care

• Watering: Water deeply when the top inch is barely dry; increase frequency in heat or wind and wet the trunk during dry spells.
• Pruning: Remove only spent fronds at the base; never cut into the crown where new fronds emerge.
• Fertilizing: Feed at half strength every 4 to 6 weeks in spring and summer for vigorous frond flushes.
• Mulching: Apply 2 to 3 in of fine bark or leaf mold to conserve moisture and enrich soil.
• Notes: Protect from frost with fleece or straw around the crown; avoid waterlogged media and strong, drying winds.

Why Choose Tasmanian Tree Fern?

• Architectural Impact: Instantly adds vertical drama and lush canopy.
• Cool-Climate Friendly: Better cold tolerance than many tree ferns with protection.
• Container Ready: Performs well in large pots for movable design.
• Textural Contrast: Fine fronds pair beautifully with bold-leaved tropicals.

Choose Tasmanian Tree Fern to bring refined, canopy-forming structure and soothing shade to sheltered, moisture-rich spaces.