Soft Tree Fern

A very common native soft tree fern in Australia. Stunning Soft Tree Ferns in a variety of sizes.

Dicksonia antarctica, commonly known as the Soft Tree Fern or Tasmanian Tree Fern, is an iconic and ancient species of tree fern native to southeastern Australia, including Tasmania. This stunning plant is widely appreciated for its lush, feathery fronds and striking trunk, making it a popular feature in shaded gardens and woodland settings.

Key Features:

Appearance:

• Form: A slow-growing, upright tree fern with a thick, fibrous trunk that supports a crown of large, arching fronds.
• Height and Spread: Typically grows to 3–6 meters (10–20 feet) tall, with a crown spread of up to 2–3 meters (6–10 feet). In ideal conditions, it can eventually reach 15 meters (50 feet) over many decades.
• Fronds: Evergreen in mild climates, with feathery, bright green fronds that can grow up to 3 meters (10 feet) long.
• Trunk: The trunk is covered in fibrous root material and old frond bases, giving it a unique, textured appearance.

Growing Conditions:

Light Requirements:

• Prefers partial to full shade, thriving in dappled light or under the canopy of larger trees. Direct sunlight can scorch its fronds, especially in hotter climates.

Soil:

• Requires moist, well-drained soil rich in organic matter. Adding compost, leaf mold, or well-rotted manure can improve soil quality.

Watering:

• Needs consistent moisture, particularly during dry periods. Both the soil and the trunk should be watered regularly, as the trunk absorbs water to support growth.
• Mulch around the base to retain soil moisture and protect the shallow root system.

Hardiness:

• It tolerates light frost but may require winter protection in colder regions.
• Can survive temperatures as low as -5°C for short periods but needs shelter from freezing winds.

Advantages:

1. Tropical Aesthetic: Adds lush greenery and a prehistoric vibe to shaded gardens.
2. Shade Tolerance: Perfect for areas where sun-loving plants struggle.
3. Long Lifespan: With proper care, it can live for decades or even centuries.
4. Low Maintenance: Once established, requires minimal care apart from watering.

Care Tips:

• Planting: Choose a sheltered location with protection from strong winds, which can damage the delicate fronds.
• Watering the Trunk: In addition to watering the soil, water the trunk directly, especially in dry weather, to ensure the plant stays hydrated.
• Fertilizing: Feed with a slow-release fertilizer or seaweed-based liquid feed during the growing season (spring and summer).
• Winter Protection: In colder climates, wrap the trunk with horticultural fleece or straw during winter to protect it from frost.

Uses in Landscaping:

• Woodland Gardens: Complements shaded, forest-like settings with its natural elegance.
• Tropical and Subtropical Gardens: Pairs well with other shade-loving plants like palms and ferns.
• Focal Point: Its dramatic fronds and textured trunk make it a standout feature in gardens or as part of a shaded border.

Potential Issues:

• Frost Damage: Prolonged frost can kill fronds or damage the trunk. Protect the crown in winter with mulch or a fleece cover.
• Overwatering: While it loves moisture, waterlogged soil can lead to root rot. Ensure good drainage.
• Pests: Occasionally affected by slugs, snails, or scale insects. Remove pests manually or treat with an appropriate pesticide.

Companion Plants for the Soft Tree Fern

• Ferns: Pair with other ferns like Blechnum, Asplenium, or Polystichum for a layered, textural look.
• Shade-Loving Perennials: Hostas, astilbes, or heucheras for contrast in foliage and color.
• Ground Covers: Mosses or creeping plants like ajuga or sweet woodruff.