Kākābeak

Botanical name: Clianthus maximus
Synonyms: Clianthus puniceus var. maximus
Common name(s): Kākābeak, Kōwhai ngutu-kākā, Kākā beak

About:
One of New Zealand’s most spectacular flowering shrubs, Clianthus maximus is renowned for its large pendulous clusters of brilliant red flowers shaped like the beak of a kākā parrot. Once more widespread, it is now one of the country’s rarest plants in the wild, although it remains a favourite in cultivation. The species forms a bushy, often sprawling shrub with glossy fern-like foliage and can flower prolifically over many months.

Natural habitat:
Early to mid-successional shrublands dominated by flax and tutu, coastal cliffs, rocky slopes, unstable bluffs, montane scrub and open sites associated with former Māori settlements, pā and garden areas.

Growing environment:
Prefers full sun and fertile, well-drained soils with good airflow. Tolerates light frosts and occasional snow but dislikes shade, waterlogged soils and competition from surrounding shrubs.

Endemic distribution:
Endemic to New Zealand. Formerly found on Great Barrier Island and more widely across the North Island. Now survives in scattered populations from Te Araroa south to northern Hawke’s Bay and west into Te Urewera.

Height:
1.5–6 m

Width:
1–6 m

Flowering:
May to January, with peak flowering from August to January

Fruiting:
Pods may be present throughout the year

Uses:
• Ornamental specimen shrub
• Native garden feature plant
• Coastal and dryland gardens
• Ecological restoration
• Pollinator plant
• Conservation and ex situ cultivation

Appearance:

Growth habit:
A bushy, upright to sprawling evergreen shrub with soft, brittle stems that often arch or trail. Branches may layer naturally and produce new plants where they touch the ground.

Leaves:
Leaves are fern-like and arranged alternately along the stems, measuring up to 25 cm long. Each leaf bears 15–30 pairs of glossy dark green leaflets with rounded or slightly notched tips. The undersides are paler and lightly hairy.

Flowers:
Large pendulous racemes carry up to 30 spectacular scarlet flowers, each about 8 cm long. The flowers are shaped like a parrot’s beak and are dark red to orange-red, with a distinctive dark maroon to almost black blotch near the base of the upper petal. Only a portion of the flower buds within each cluster typically open.

Fruit:
Produces long green pea-like pods that mature to black and split open along their length, releasing numerous small hard seeds mottled with black and grey.

Ecology:
Seeds are dispersed by wind. Flowers are pollinated by birds and insects and provide an important nectar source. Wild populations are extremely small and fragmented, with fewer than 200 mature plants remaining. Plants are threatened by browsing animals, disease, habitat loss, weeds, fire and natural succession.

Associated habitats:
Flax shrublands, tutu scrub, coastal bluffs, rocky slopes, montane scrub, cliff faces, erosion-prone sites and early successional vegetation.

How to grow:
Plant in full sun in fertile, free-draining soil with good airflow. Water during dry periods while establishing but avoid overwatering. Protect young plants from slugs and snails. Prune hard after flowering to encourage bushy growth and prolong the plant’s lifespan.

Propagation:
Easily grown from fresh seed, semi-hardwood cuttings or stem layering. Plants grow quickly but are often short-lived, typically surviving 2–4 years before declining.

Cultural use:
Kākābeak is thought to have been cultivated and spread by Māori, and many surviving inland populations occur near former pā, kāinga and traditional travel routes. The striking flowers have long been admired and are an iconic symbol of New Zealand’s native flora.

Garden value:
One of New Zealand’s most spectacular flowering natives, prized for its glossy foliage and dramatic red flowers. Despite its short lifespan, it is an outstanding feature plant and a must-have for native plant enthusiasts and conservation gardens.