Puawhananga hero image

Puawhananga

Clematis paniculata

Not Threatened

Clematis paniculata, commonly known as Puawhananga, is New Zealand's most spectacular native climber, draping forest edges with a breathtaking display of large star-shaped white flowers in spring. This vigorous vine creates stunning visual impact as it climbs through trees and shrubs, with its magnificent blooms signaling the arrival of warmer weather. Clematis paniculata is particularly valued for its ability to transform landscapes with its prolific flowering and robust growth habit. native trees

Clematis (New Zealand Clematis)

Image credit: Puawhananga (Clematis paniculata). Wikipedia

Quick Facts

Overview

Scientific NameClematis paniculata
HeightUp to 10 m (33 ft) as a climber
Spread2–4 m (6–13 ft) wide, depending on support
Water NeedsModerate; prefers moist, well-drained soil
LightFull sun to partial shade
Frost ToleranceModerate; tolerates light to moderate frosts
Salt ToleranceModerate; tolerates some coastal exposure
Growth RateFast
LifespanPerennial; long-lived in suitable conditions

Climate Best Suited to

Distribution Map

Clematis paniculata is found throughout New Zealand, from lowland forests to montane regions, especially in forest margins and clearings. It is most common in the North Island and northern South Island.

CitySuitability
WhangāreiIdeal
AucklandIdeal
HamiltonIdeal
TaurangaIdeal
RotoruaIdeal
GisborneIdeal
New PlymouthIdeal
NapierIdeal
WhanganuiIdeal
Palmerston NorthIdeal
WellingtonIdeal
NelsonIdeal
ChristchurchGood
DunedinGood
InvercargillModerate

Clematis paniculata has specific growing requirements that reflect its natural habitat preferences. Understanding these requirements is crucial for successfully growing Clematis paniculata in your garden. When properly cared for, Clematis paniculata will reward you with its spectacular floral display.

Soil Requirements

is remarkably adaptable to different soil conditions:

  • Tolerates a wide range of soil types from clay to sandy
  • Prefers well-draining soils but can handle occasional waterlogging
  • Thrives in moderately fertile soils but will grow in poor soils too
  • Can tolerate slightly acidic to slightly alkaline pH
  • Handles coastal conditions including salt spray

Light Requirements

s are sun-lovers that perform best with:

  • Full sun for optimal growth and form
  • Can tolerate partial shade but may develop a leggier form
  • At least 6 hours of direct sunlight daily is ideal
  • Northern or eastern exposures work well in garden settings

Water Requirements

Once established, s are drought-tolerant:

  • Moderate watering during establishment (first 1-2 years)
  • Drought-tolerant once established
  • Can handle periods of soil saturation
  • Reduce watering in winter when growth slows
  • Signs of overwatering include yellowing leaves and crown rot

Growing Requirements

Understanding the specific growing requirements of Clematis is essential for successful cultivation. These requirements include soil type, water needs, light conditions, and climate preferences.

Plant Ecology

The ecology of Clematis involves its interactions with other species and its role in ecosystem processes. Understanding these relationships helps in conservation and cultivation.

Uses & Significance

Garden Uses

  • Climbing over pergolas and arches
  • Training against walls and fences
  • Scrambling through trees and shrubs
  • Feature plant for spring display
  • Native garden focal point
Cultural Significance Ecological Value
  • Provides nectar for native insects
  • Adds structural diversity to forest edges
  • Habitat for small birds and insects
  • Contributes to forest succession

Seasonal Care Calendar

Spring

  • New growth begins
  • Apply a balanced fertilizer if desired (though not usually necessary)
  • A good time to plant new specimens or divide offsets
  • Monitor for new pest activity

Summer

  • Flowering typically occurs in early summer
  • Water young trees during extended dry periods
  • Look out for infestations of moth caterpillars
  • No pruning needed during the growing season

Autumn

  • White or cream berries develop and ripen
  • Natural leaf shedding occurs (normal part of growth cycle)
  • Good time for planting new specimens
  • Clean up fallen leaves if desired

Winter

  • Generally dormant with minimal growth
  • No special winter protection needed in most of New Zealand
  • Suitable time for pruning if needed
  • Fallen leaves can be left as mulch or removed for tidiness

Pruning and Maintenance

Clematis generally requires minimal pruning. Remove dead or damaged growth as needed and shape the plant to maintain desired form. Pruning is best done in late winter or early spring before new growth begins.

Planting Guide

When to Plant

The best time to plant s is during autumn or spring when soil temperatures are mild and rainfall is typically more reliable. This gives the roots time to establish before extreme heat or cold.

Site Selection

Choose a site with:

  • Full sun to partial shade
  • Well-draining soil (though adaptable to most soil types)
  • Protection from strong winds for young plants
  • Adequate space for mature growth (5-10m tall and 2-3m spread)

Planting Procedure

  1. Dig a hole twice as wide and the same depth as the root ball
  2. Add compost or well-rotted manure to heavy clay soils to improve drainage
  3. Position the plant so the crown sits at soil level
  4. Backfill with soil, gently firming down to remove air pockets
  5. Create a watering basin around the plant
  6. Water thoroughly after planting
  7. Apply a 5-10cm layer of mulch, keeping it away from the trunk

Initial Care

Water regularly during the first growing season, especially during dry periods. After establishment, s are quite drought-tolerant but will grow more lushly with regular watering.

Propagation

Seed Propagation

Clematis can be propagated from seed collected from mature plants. Sow seeds in well-draining potting mix and keep moist until germination.

Vegetative Propagation

Many Clematis plants can be propagated from cuttings or division. Take cuttings in spring or summer and root in a suitable growing medium.

Cultural History

The () holds profound significance in Māori culture and history, serving as both a practical resource and a cultural symbol for generations:

Traditional Uses

  • Food Source: The roots and young shoots were cooked in earth ovens (hāngī) to produce a sweet food called kāuru, rich in carbohydrates
  • Medicine: Various parts were used to treat wounds, diarrhea, and other ailments
  • Fiber: The leaves provided durable fiber (muka) for making sandals (pāraerae), waterproof rain capes, and baskets
  • Shelter: The leaves were used for thatching temporary shelters

Cultural Significance

  • The trees were often planted to mark trails, boundaries, and urupā (burial grounds)
  • They served as markers for good fishing and eeling spots
  • Their distinctive form made them important landmarks for navigation
  • Plantings often indicated the location of marae (meeting grounds) or settlements
  • Certain trees were considered tapu (sacred) and associated with tribal histories

Early European History

  • Early settlers used the leaves as emergency food for cattle during droughts
  • The young inner shoots were sometimes eaten as a substitute for cabbage (hence the common name)
  • The trees became iconic features of the developing pastoral landscape
  • They were commonly planted as specimen trees around homesteads

Contemporary Cultural Role

Today, the continues to be an iconic symbol of New Zealand identity, featuring in art, literature, and landscape design. The species has come to represent resilience and adaptation – qualities shared by both the plant and the peoples of Aotearoa New Zealand.

Pests & Diseases

Sudden Decline Syndrome

  • Cause: A phytoplasma (bacterial pathogen) spread by introduced passion vine hoppers
  • Symptoms: Leaves yellow and die from the crown down; leaf bases often rot inside the crown; leaves fall but remain hanging down the trunk
  • Management: No cure is available. Remove and destroy affected trees to prevent spread. Plant resistant selections where possible

Moth(Epiphryne verriculata)

  • Damage: Caterpillars feed on leaves, creating distinctive notched patterns and sometimes completely defoliating young plants
  • Symptoms: Semicircular notches around leaf edges; webbing between leaves; caterpillar frass (droppings)
  • Management: Natural infestation is rarely serious enough to warrant control. For severe cases on small plants, remove caterpillars manually or apply Bacillus thuringiensis spray

Leaf Spot Diseases

  • Cause: Various fungal pathogens including Septoria species
  • Symptoms: Small brown or black spots on leaves, sometimes with yellow halos; spots may enlarge and merge in severe infections
  • Management: Improve air circulation; avoid overhead watering; remove severely affected leaves; apply copper-based fungicide for valuable specimens if necessary

Root and Crown Rot

  • Cause: Phytophthora and other soil-borne pathogens, usually associated with poor drainage
  • Symptoms: Wilting despite adequate soil moisture; yellowing leaves; slow growth; soft, discolored tissue at the crown
  • Management: Improve drainage; avoid overwatering; ensure crown is not buried too deeply; avoid soil compaction around the base

Other Pests

  • Scale insects: Can colonize leaves and stems, causing yellowing and reduced vigor
  • Mealybugs: Sometimes infest the crown and leaf bases
  • Rabbits and hares: May damage young plants by chewing bark and shoots

Most established s are resilient enough to recover from pest and disease issues without intervention. For valuable specimen trees, consult with a professional arborist or horticulturist for specific treatment recommendations.

Puawhananga (Clematis paniculata) is a vigorous climber with masses of white, star-shaped flowers in spring. It is a symbol of new beginnings in Māori tradition and brightens any garden trellis.

Species Information

This comprehensive guide provides detailed information about the plant's classification, characteristics, and ecological role within New Zealand's unique flora. Understanding these aspects helps gardeners and conservationists make informed decisions about cultivation and preservation efforts.

Species Details

Explore the scientific classification and characteristics of this native species.

Natural Habitat

Clematis is naturally found in specific habitats throughout New Zealand. Understanding its natural environment helps in providing appropriate growing conditions in cultivation.

Related Plants

Discover other native plants that complement Clematis in your garden. These plants share similar growing conditions and create beautiful, sustainable landscapes.

Conservation

Conservation of this plant and its natural habitat is Not threatened, but wild populations can be affected by forest clearance and browsing animals.

Landscaping Uses

Clematis is highly valued in landscaping for its aesthetic appeal and practical benefits. It can be used in various garden styles and landscape applications.

Ecological Role

Wildlife Interactions

Clematis plays an important ecological role in New Zealand's native ecosystems. It provides habitat and food for native wildlife and contributes to ecosystem health and biodiversity.

Care and Maintenance

Regular care and maintenance will keep Clematis healthy and thriving. This includes proper watering, feeding, and monitoring for any issues.

Clematis has specific growing requirements that should be met for optimal health and growth. Understanding these needs will help ensure successful cultivation.

Plant Description

Physical Characteristics

Clematis exhibits distinctive characteristics that make it easily identifiable in its natural habitat. Its growth habit, leaf structure, and seasonal changes all contribute to its unique appearance and ecological role.

Understanding these physical characteristics helps gardeners and conservationists identify the plant correctly and provide appropriate care. The plant's form and features also make it valuable for landscaping and restoration projects.

Planting Section

Planting Requirements

Proper planting techniques are crucial for the successful establishment of Clematis paniculata. Taking time to prepare the site and follow best practices will help ensure the plant thrives in its new location.

Consider the plant's mature size and growth habit when selecting a planting location. This planning helps avoid future problems and creates more sustainable, low-maintenance landscapes.