Leather-leaved Daisy (Celmisia coriacea) showing its characteristic orange-striped leaves and white daisy flowers

Leather-leaved Daisy

Celmisia coriacea

Not Threatened

Leather-leaved Daisy, known as tikumu in Māori, is a distinctive and robust endemic New Zealand mountain daisy that forms impressive stout, woody-based clumps in irregular sward-like patches, featuring spectacular leathery lanceolate leaves measuring 160-400mm × 25-55mm with the species' most characteristic trait - a conspicuous orange stripe along the midrib on the bronze-green upper surface and densely glistening appressed silvery tomentum covering the lower surface. This remarkable alpine herb produces magnificent white daisy flowers with 160-200 white ray florets surrounding 200-250 yellow disc florets from November to February, creating stunning displays in Fiordland's montane to alpine zones from Nancy Sound to near Puysegur Point, where it thrives in wet grassland and herbfield environments, particularly near timberline where it forms large patches in boggy grass-rush communities intermixed with low scrub. With its wind-dispersed seeds and traditional cultural significance as tikumu - used by Māori for making waterproof raincapes (pōkeka), chest protectors (poho-taupa), and other protective clothing by knitting the white fluffy leaf material into flax fibers - this hardy mountain specialist makes an outstanding choice for specialized alpine gardens, cool climate rock gardens, and native plant collections where its distinctive orange-striped leaves and spectacular white flowers can create authentic New Zealand high-country displays. alpine plants

Leather-leaved Daisy (Celmisia coriacea) showing its characteristic orange-striped leaves and white daisy flowers

Image credit: Leather-leaved Daisy (Celmisia coriacea). Wikipedia

Quick Facts

Quick Facts Overview

Scientific NameCelmisia coriacea
Height30-60cm (forming sward-like patches)
SpreadIrregular patches (colony-forming)
Water NeedsHigh (permanently moist, boggy conditions)
LightFull sun to partial shade (alpine conditions)
Frost ToleranceExcellent (alpine native)
Salt TolerancePoor (montane species)
Growth RateSlow to moderate (alpine conditions)
LifespanLong-lived perennial

Climate Best Suited to

Leather-leaved Daisy thrives in cool, moist alpine and montane conditions with excellent drainage. It requires specialized growing conditions that mimic its natural Fiordland alpine habitat preferences.

Regional Suitability

CityClimate Suitability
WhangāreiPoor (too warm and humid)
AucklandPoor (too warm and humid)
HamiltonPoor (too warm and humid)
TaurangaPoor (too warm and humid)
RotoruaModerate (cooler highland)
GisbornePoor (too warm)
New PlymouthModerate (mountain proximity)
NapierPoor (too warm and dry)
WhanganuiModerate
Palmerston NorthModerate
WellingtonGood (cooler, windier)
NelsonGood (alpine access)
ChristchurchIdeal (alpine conditions)
DunedinIdeal (cool, moist climate)
InvercargillIdeal (Fiordland proximity)

Growing Requirements

Soil Requirements

Leather-leaved Daisy has specific alpine soil preferences:

  • Permanently moist, free-draining, acidic soil essential
  • Thrives in boggy grass-rush communities
  • Benefits from organic matter and peat content
  • Cannot tolerate drying out or poor drainage
  • Prefers wetland-type soils with excellent drainage

Light Requirements

Alpine light conditions:

  • Full sun to partial shade preferred
  • Best grown in shaded sites in cultivation
  • Benefits from protection from intense afternoon heat
  • Adapted to high UV alpine environments in nature

Water Requirements

High moisture needs with excellent drainage:

  • Permanently moist conditions absolutely essential
  • Cannot tolerate drying out at any time
  • Thrives in wet grassland and herbfield conditions
  • Dislikes humidity but needs consistent soil moisture
  • Excellent for bog gardens and wet alpine areas

Uses & Significance

Garden Uses

  • Spectacular alpine and high-altitude rock garden specimen
  • Cool climate bog gardens and wetland plantings
  • Specialized containers for alpine plant enthusiasts
  • Native plant collections and botanical gardens
  • Educational displays about Fiordland flora
  • Conservation gardens for endemic South Island species

Cultural Significance

  • Traditional Māori name: tikumu
  • Historically used for waterproof raincapes (pōkeka)
  • Material for chest protectors (poho-taupa) and leggings (taupa)
  • White fluffy leaf material knitted into flax for waterproofing
  • Used as tobacco substitute and for treating asthma
  • Leaf fibers considered for paper manufacturing

Ecological Value

  • Essential component of Fiordland's alpine herbfield ecosystems
  • Forms large patches that stabilize wet grassland areas
  • Provides habitat for specialized alpine invertebrates
  • Wind-dispersed seeds support natural colonization
  • Important indicator species for healthy alpine wetlands

Seasonal Care Calendar

Spring

  • New growth emerges with distinctive orange-striped leaves
  • Active root development begins
  • Excellent time for planting fresh seed
  • Maintain consistent moisture as growth accelerates

Summer

  • Peak flowering season November to February
  • Spectacular white daisy flowers with yellow centers
  • Up to 200 white ray petals per flower head
  • Critical to maintain permanent moisture during flowering

Autumn

  • Seed development and natural wind dispersal January-April
  • Continued attractive foliage with orange leaf stripes
  • Good season for seed collection
  • Maintain moisture as temperatures begin cooling

Winter

  • Evergreen foliage provides year-round structure
  • Excellent frost tolerance requiring no protection
  • Reduce watering frequency but maintain soil moisture
  • Planning season for specialized alpine garden improvements

When to Prune and How Much

When to Prune and How Much Overview

Leather-leaved Daisy requires minimal maintenance:

  • Remove spent flower heads to encourage continued blooming
  • Trim any damaged or dead leaves as needed
  • Generally best left to develop natural sward-like patches
  • Clean removal of old foliage promotes healthy new growth
  • Allow natural colony-forming habit to develop

The distinctive orange-striped leathery leaves and magnificent white flowers are the main attractions and should be preserved through minimal intervention.

Planting Guide

When to Plant

The best time to plant Leather-leaved Daisy is during spring when active growth begins, though specialized alpine conditions require careful preparation and timing.

Site Selection

Choose a site with:

  • Permanently moist, free-draining, acidic soil
  • Shaded location with protection from intense heat
  • Cool conditions with good air circulation
  • Space for colony-forming growth habit
  • Consistent moisture without waterlogging

Planting Procedure

  1. Prepare specialized alpine growing medium with peat and organic matter
  2. Ensure excellent drainage while maintaining permanent moisture
  3. Plant at same level as in container
  4. Water thoroughly but avoid waterlogging
  5. Apply organic mulch to retain moisture
  6. Provide initial protection from heat and wind
  7. Monitor closely during establishment period

Initial Care

Maintain permanent moisture with excellent drainage and provide consistent shade. This Fiordland alpine specialist requires very specific conditions and patience to establish successfully in cultivation.

Propagation Methods

From Fresh Seed

Growing from seed is the primary propagation method:

  1. Collect fresh seed from mature flower heads January-April
  2. Sow immediately or provide 1-3 months cold stratification
  3. Sow on specialized alpine growing medium
  4. Maintain cool, consistently moist conditions
  5. Provide bright, indirect light
  6. Transplant carefully when large enough to handle

Division

Division of established clumps can be attempted:

  1. Divide established woody-based clumps in early spring
  2. Carefully separate sections with roots and growing points
  3. Replant immediately in suitable alpine conditions
  4. Maintain high humidity and permanent moisture
  5. Provide protection during recovery period

Specialized Requirements

This alpine specialist requires very specific cool, moist conditions and is extremely challenging to cultivate outside its natural Fiordland habitat.

Cultural History

Leather-leaved Daisy (Celmisia coriacea) represents both the remarkable traditional utility of New Zealand's alpine plants and the specialized adaptations that allow survival in harsh mountain environments:

Traditional Māori Heritage

  • Traditional Name: Known as tikumu in Māori
  • Waterproof Clothing: White fluffy leaf material knitted into flax whītau to make pōkeka waterproof
  • Protective Garments: Used for poho-taupa (chest protectors), taupa (leggings), tahau-taupa (shin protectors)
  • Medicinal Uses: Served as tobacco substitute and treatment for asthma
  • Wound Care: Fine, soft leaf lint used for dressing wounds in early days

Botanical Significance

  • Species Name: "coriacea" means leathery, referring to leaf texture
  • Genus Etymology: Named after Kelmis, a mythical Greek blacksmith
  • Distinctive Feature: Conspicuous orange stripe along leaf midrib
  • Alpine Specialist: Forms large patches in boggy alpine communities

Geographic Distribution

  • Endemic Range: Restricted to Fiordland and western Southland
  • Altitude Preference: Montane to alpine zones near timberline
  • Habitat Specificity: Wet grassland and herbfield specialist
  • Conservation Status: Regionally naturally uncommon in parts of range

Contemporary Value

Today, Leather-leaved Daisy serves as an excellent example of New Zealand's endemic alpine diversity, representing both the traditional utility of native plants and the specialized adaptations required for survival in Fiordland's unique mountain environments.

Pests & Diseases

Generally Hardy in Natural Habitat

  • Alpine Adaptation: Well-adapted to harsh Fiordland mountain conditions
  • Cold Tolerance: Excellent resistance to frost and alpine weather
  • Natural Resilience: Few serious pest or disease issues in native environment

Cultivation Challenges

  • Humidity Sensitivity: Dislikes humidity and warm, moist air
  • Root Rot: Susceptible to root rot if drainage is inadequate
  • Heat Stress: Cannot tolerate warm temperatures or dry conditions

Environmental Requirements

  • Moisture Balance: Requires permanent soil moisture with perfect drainage
  • Temperature Sensitivity: Needs cool, alpine-like conditions year-round
  • Soil Specificity: Must have acidic, organic-rich, permanently moist soil

Management

Provide cool, consistently moist but perfectly-draining acidic conditions that replicate its natural Fiordland alpine habitat. Protect from heat, humidity, and drying conditions. This is an extremely challenging species requiring specialized alpine gardening expertise.

Bonus Tip

Bonus Tip Overview

Leather-leaved Daisy is one of New Zealand's most challenging but rewarding alpine plants - the distinctive orange stripe down the center of each leathery leaf makes it instantly recognizable, and the massive white daisy flowers (up to 200 ray petals!) are truly spectacular. This is definitely a plant for serious alpine gardeners only. The key is understanding it comes from Fiordland's unique climate - cool, constantly moist but never waterlogged, with excellent drainage. Think "mountain bog" conditions. The traditional Māori name tikumu reflects its cultural importance - the white fluffy undersides of leaves were actually knitted into flax to make waterproof raincapes! If you can provide the right conditions, you'll have one of New Zealand's most distinctive and culturally significant mountain daisies.

Alpine Heritage

Alpine Heritage Overview

Learn more about New Zealand's mountain flora in Alpine Plants.

Plant Description

Plant Description Overview

Celmisia coriacea is a robust mountain daisy forming clumps of leathery, grey‑green leaves with silvery undersides. Large white daisies with golden discs are held above the foliage in summer, creating classic alpine displays.

Natural Habitat

Natural Habitat Overview

Occurs in subalpine to alpine herbfields, tussocklands, and rocky slopes, favouring free‑draining, mineral soils with high light and cool air movement.

Plant Ecology

Plant Ecology Overview

Leaves with reflective surfaces reduce heat load and water loss. Flowers provide nectar and pollen for alpine insects; wind aids seed movement across open slopes and screes.

Ecological Role

Ecological Role Overview

Acts as a keystone rosette herb in high‑country plantings, sheltering soil and smaller herbs while adding seasonal resources for pollinators.

Site Requirements

Site Requirements Overview

  • Light: Full sun; intolerant of heavy shade.
  • Soil: Very free‑draining, gritty mixes; avoid heavy, wet soils.
  • Moisture: Moderate; prefers cool, even moisture at the root zone.
  • Exposure: Wind and frost hardy; enjoys airflow.

Plant on raised beds or scree gardens; mulch with grit to protect collars. Water sparingly in summer heat; avoid waterlogging at any time.

Planting

Planting Overview

  1. Choose the sunniest, sharp‑drained position available.
  2. Plant slightly proud of soil level; backfill with gritty mix.
  3. Water once to settle; then keep on the dry side.

Care and Maintenance

Care and Maintenance Overview

Remove spent flower stalks and tidy old basal leaves annually. Rejuvenate congested clumps by division in early spring, replanting into fresh, gritty soils.

Landscaping Uses

Landscaping Uses Overview

Superb for alpine rock gardens, scree beds, and raised planters. Pairs with Raoulia, Chionochloa, small hebes, and hardy ferns like Necklace Fern for authentic high‑country plantings.

Conservation

Conservation Overview

Generally common in suitable habitat. In restoration and translocation work, use eco‑sourced plants and protect from trampling in fragile alpine sites.

Cultural Section

Details

Celmisia (tikumu) hold cultural importance and today are celebrated in alpine gardens for resilience and striking foliage. Use eco‑sourced plants in restoration and avoid collecting from the wild.