This rhizomatous perennial has large upright leathery leaves that form a tufted-clumping habit. The broad flax-like green leaves droop at the tips and the tiny cream tube-shaped flowers appear in clusters during spring followed by black berries.

Hardiness zones 9 to 10 

Astelia banksii is naturally found on the North Island of New Zealand growing in lowland scrub or on rocky outcrops and coastal forests. 

It prefers an open sunny to semi shaded position in most well drained moderately fertile soils and is generally a hardy plant tolerating tolerating salt laden winds, light frost and drought.

Wharawhara is grown for its foliage and its clumping habit. It is planted in coastal gardens along borders or mass planted in garden beds. It is used in commercial settings establishing in 2 to 3 years. It is also planted in patio pots or planter boxes and is ideal for rockeries in exposed positions. ID 2825

Note:
This plant may only be available in New Zealand. 

Astelia (Ă-stel-ea) banksii (bank-see-i)

Liliaceae (lil-ee-AY-see-ee)
Lily Family