White Clematis
Botanical name: Clematis paniculata
Synonyms: Clematis indivisa; Clematis integrifolia
Common name(s): White Clematis, Puawānanga, Puapua
About:
New Zealand’s best-known native clematis and one of the country’s most spectacular flowering climbers. Clematis paniculata is a vigorous evergreen vine that produces masses of large, fragrant white flowers in spring, often draping forest canopies and shrublands in white. Its Māori name, Puawānanga or “flower of the skies”, reflects its habit of climbing high into the forest canopy and its importance as a seasonal marker.
Natural habitat:
Coastal to montane shrublands and forests, climbing through trees and shrubs up to about 1000 m above sea level.
Growing environment:
Prefers moist, fertile, well-drained soils with the roots kept cool and shaded while stems climb into full sun. Thrives in sheltered sites with good airflow and dislikes prolonged drought or humid conditions.
Endemic distribution:
Endemic to New Zealand. Naturally found throughout the North, South and Stewart Islands and naturalised on the Chatham Islands.
Height:
Up to 10 m
Width:
3–6 m
Flowering:
July–November
Fruiting:
October–January
Uses:
• Ornamental climber for pergolas and fences
• Woodland and forest gardens
• Ecological restoration
• Wildlife habitat
• Screening and vertical interest
• Traditional Māori medicinal uses
Appearance:
Growth habit:
A robust evergreen woody climber with thick, grey-brown stems that can exceed 20 cm in diameter at the base. It climbs high into trees and shrubs using twining leaf stalks.
Leaves:
Leaves are arranged oppositely and divided into three leathery leaflets. The leaflets are broad, dark green and glossy above, with a paler underside sparsely covered in white hairs. Margins are usually entire or slightly toothed near the tip.
Flowers:
Large, showy white flowers are borne in clusters during spring. Male flowers are typically larger than female flowers and consist of six broad sepals surrounding numerous stamens. Flowers are lightly fragrant and can cover entire canopies when the plant is in full bloom.
Fruit:
Produces small hairy achenes topped with long silky white plumes. The feathery seed heads are attractive but are not long persistent.
Ecology:
Seeds are dispersed by wind. Flowers are an important nectar source for bees and native insects. The species is dioecious, with male and female flowers produced on separate plants. Dense vines provide shelter and habitat for birds and invertebrates.
Associated habitats:
Lowland forest, coastal forest, montane forest, shrublands, regenerating bush and forest margins.
How to grow:
Plant in fertile, moist but well-drained soil with the roots shaded and the stems able to climb into sunlight. Provide a trellis, fence or nearby tree for support. Water regularly while establishing and mulch to maintain cool root conditions.
Propagation:
Easily grown from fresh seed. Seeds germinate readily, though a short cold stratification period may improve germination rates. Cuttings can be taken but are often slow and unreliable to root.
Cultural use:
Puawānanga holds great significance in Māori culture. Its flowering traditionally signalled the arrival of spring and the beginning of the eel migration season. The flowers were used in garlands and wreaths, and the plant was also used medicinally for a range of ailments.
Garden value:
One of New Zealand’s finest native climbers, valued for its spectacular spring display of large white flowers and attractive feathery seed heads. Ideal for covering pergolas, climbing through trees, or adding dramatic seasonal interest to native and woodland gardens.