Dracophyllum fiordense (Fiordland Grass Tree) hero image

Fiordland Grass Tree

Dracophyllum fiordense

Declining

Dracophyllum fiordense, commonly known as the Fiordland grass tree, is an endemic New Zealand shrub or tree belonging to the heath family, Ericaceae. This species typically grows to a height of 1.5 to 5.0 meters (5 to 16 feet). It usually has a single, unbranched trunk, though some plants, particularly in Westland, may develop upright branches. native trees

Dracophyllum fiordense (Fiordland Grass Tree) showing its distinctive leaves
Image credit: Fiordland Grass Tree (Dracophyllum fiordense) - Photo by Wikipedia contributors, via Wikipedia

Plant Description

The bark on older sections is greyish-brown and can be flaky and fragmented near the base, while newer growth is yellowish-brown. Its distinctive leaves are concentrated at the ends of branches, resembling those of the Bromeliaceae family. These leathery leaves are linear-triangular to lanceolate, deeply grooved, and measure 40"“70 cm long by 4"“5 cm wide, often with a curled spiral tip. D. fiordense produces a pyramid-shaped inflorescence (flower spike) hidden beneath each leaf clump, bearing between 113 and 120 pink flowers, each around 2 by 2 mm. These flowers later develop into reddish-brown dry fruit of similar size.

Quick Facts

Dracophyllum fiordense quick facts
Scientific Name Dracophyllum fiordense
Height 1.5-5m
Spread 1-2m
Water Needs Moderate
Light Full sun
Frost Tolerance Hardy
Salt Tolerance Low
Growth Rate Slow
Lifespan Long

Climate Best Suited to

Dracophyllum fiordense is found in the South Island of New Zealand, primarily in two main populations: one in Fiordland National Park and another in Aoraki/Mount Cook and Westland National Parks. It inhabits steep mountain slopes, ranging from 50 to 1,280 meters (160 to 4,200 feet) in elevation, typically on north, north-west, or north-eastern facing slopes.

Regional Suitability

City suitability for Dracophyllum fiordense
City Climate Suitability
Whangārei Poor
Auckland Poor
Hamilton Poor
Tauranga Poor
Rotorua Poor
Gisborne Poor
New Plymouth Poor
Napier Poor
Whanganui Poor
Palmerston North Poor
Wellington Moderate
Nelson Ideal
Christchurch Ideal
Dunedin Ideal
Invercargill Ideal

Plant Habitat

Its preferred environments include lowland to subalpine forests, shrubland, and tussock grassland, often found in gullies, ravines, ridges, bluffs, and cliff faces. The soil in these areas is commonly a brown clay loam derived from schist and gneiss, often rich in humus. Associated vegetation can include silver beech (Nothofagus menziesii), tūpare (Macrolearia colensoi), mountain flax (Phormium cookianum), and tussock grasses (Chionochloa species).

Plant Conservation

The conservation status of Dracophyllum fiordense was assessed as "Declining" in 2023. The kākāpō, a flightless bird, is known to feed on the bases of its leaves. The plant is likely pollinated by insects, and its seeds are dispersed by wind.

Growing Requirements

Soil Requirements

Dracophyllum fiordense thrives in well-drained, often infertile, acidic brown soils and podzols found on steep, exposed mountain slopes.

  • Well-drained, acidic soil

Light Requirements

This plant prefers a sunny position.

  • Full sun

Water Requirements

It prefers moist lowland and subalpine conditions.

  • Consistently moist soil

Planting Guide

While detailed cultivation instructions are not readily available, understanding its natural habitat provides some insights into its growing requirements. Given its natural environment, successful cultivation would likely require mimicking these conditions, including good drainage, appropriate soil composition, and potentially a cool, moist climate. Specific propagation methods or horticultural care details are not provided in the search results.

Ecological Role

The kākāpō, a critically endangered flightless parrot endemic to New Zealand, is known to feed on the bases of its leaves, making this species an essential component of the kākāpō's specialized diet. The plant is likely pollinated by native insects, particularly flies and small beetles that visit its distinctive pink flower spikes during the summer flowering period. Seeds are dispersed by wind through Fiordland's strong mountain currents, allowing the species to colonize suitable rocky habitats across its limited range while maintaining genetic diversity between isolated populations.

Uses & Significance

Garden Uses

Due to its specific growing requirements and conservation status, Dracophyllum fiordense is not a common garden plant.

  • Not suitable for most gardens

The genus name "Dracophyllum" means "dragon-leaf", referring to the leaves' resemblance to those of the dragon tree.

  • Genus name means "dragon-leaf"

Ecological Value

This plant is an important food source for the critically endangered kākāpō.

  • Food source for kākāpō

Landscaping Uses

Due to its specific growing requirements and conservation status, Dracophyllum fiordense is not recommended for general landscaping purposes. The species requires specialized alpine conditions that are extremely difficult to replicate in typical garden settings.

Seasonal Care Calendar

Spring

In spring, new growth may appear.

  • Monitor for new growth

Summer

During summer, ensure the plant has adequate moisture.

  • Water regularly

Autumn

In autumn, the plant will be preparing for winter.

  • Minimal care required

Winter

In winter, the plant is dormant.

  • Minimal care required

When to Prune and How Much

Pruning is not generally required for this plant due to its naturally slow growth rate and well-structured branching habit in its native alpine environment. However, if cultivated, dead, damaged, or diseased branches should be removed promptly using clean, sharp tools to prevent the spread of pathogens. Any pruning should be undertaken during the plant's dormant period in late winter or early spring before new growth begins, and cuts should be made just above healthy buds or branching points.

  • Remove only dead, damaged, or diseased wood
  • Prune during dormant season if necessary
  • Use clean, sharp tools to prevent disease transmission

How to Grow Fiordland Grass Tree

From Seed

Propagation of Dracophyllum fiordense from seed presents exceptional challenges due to its extremely limited distribution in Fiordland's harsh alpine and subalpine environments. While specific documentation remains limited, this species likely follows patterns similar to other high-elevation Dracophyllum taxa, producing extremely fine, dust-like seeds that require very specialized conditions for successful germination. The species' adaptation to Fiordland's unique climate of high rainfall, strong winds, and temperature extremes creates highly specific dormancy and germination requirements that are difficult to replicate in cultivation settings.

Seeds mature during late autumn months and require immediate collection before wind dispersal in the challenging Fiordland environment. The extremely fine nature of the seeds demands careful handling to prevent loss during processing. Extended cold stratification at 2-4°C for 8-12 weeks is likely essential to break the complex dormancy mechanisms evolved for Fiordland's harsh winters. Additional stratification cycles may be required, as seeds from extreme environments often exhibit irregular germination patterns extending over multiple seasons.

Sow stratified seeds on the surface of specialized mountain plant mix containing sphagnum peat, sharp sand, and perlite for exceptional drainage while maintaining moisture retention. Do not cover seeds as light is required for germination. Maintain consistent moisture using ultra-fine misting to avoid disturbing the microscopic seeds, keeping temperature between 8-12°C to replicate the cool conditions of Fiordland's high country. Provide bright, indirect light and excellent air circulation to prevent fungal issues. Germination is extremely slow and highly irregular, potentially taking 6-18 months with many seeds remaining dormant for extended periods. Seedlings grow exceptionally slowly, requiring 5-7 years to reach transplanting size, demanding extraordinary patience and consistent care from propagators.

From Cuttings

Vegetative propagation of Dracophyllum fiordense through cuttings is extraordinarily difficult and rarely successful, reflecting the species' extreme adaptation to Fiordland's harsh conditions. The combination of the genus's generally poor rooting characteristics with this species' specific adaptations to extreme weather conditions makes cutting propagation one of the most challenging endeavors in native plant propagation. Semi-hardwood cuttings represent the only potentially viable approach, though success rates remain virtually zero even under optimal conditions.

If attempted, select the softest available shoots from current season's growth during late summer when wood has begun to mature slightly but retains some flexibility. Take cuttings 8-10cm long with extremely sharp, sterile tools to minimize damage to the tough, adapted tissues. Remove lower foliage with extreme care to avoid bark stripping, and trim remaining needle-like leaves by one-third to reduce water loss. Wound the base very lightly with a sharp blade to potentially improve hormone uptake, though the woody nature of even young growth makes this challenging.

Apply maximum-strength rooting hormone (10000ppm IBA) and plant in the most free-draining cutting mix possible, using coarse sand, perlite, and pine bark. Maintain extremely high humidity (95-98%) using sophisticated misting systems while ensuring excellent air circulation to prevent inevitable fungal issues. Provide gentle bottom heat to maintain soil temperature around 15-18°C, with bright but heavily filtered light. Even under these optimal conditions, root development is highly unlikely, and any attempted propagation should be considered experimental. Layering of accessible branches, while theoretically possible, is impractical given the species' growth habit and natural habitat constraints.

Pests & Diseases

There is no specific information available about pests and diseases affecting Dracophyllum fiordense in its natural habitat, likely due to its remote Fiordland distribution and harsh growing conditions that naturally limit pest populations. In cultivation, the species may be susceptible to common fungal issues such as root rot if drainage is inadequate, and scale insects or aphids may occasionally affect new growth. The plant's natural resistance to most problems makes it relatively low-maintenance from a pest management perspective.

Cultural Significance

Dracophyllum fiordense occupies rugged Fiordland habitats. Specific traditional uses are not widely published, yet as a taonga of alpine shrublands it contributes to the story and stewardship (kaitiakitanga) of these remote environments.

  • Key component of Fiordland alpine shrublands
  • Supports biodiversity in severe climates
  • Customary uses not widely recorded

Bonus Tip

This plant is an important food source for the critically endangered kākāpō, New Zealand's flightless parrot. The kākāpō feeds on the leaf bases of this specialized mountain species, making it a crucial component in the diet of one of the world's rarest birds, highlighting the interconnected nature of New Zealand's unique alpine ecosystems.