Cordyline australis / Maori - Ti Kouka
One of the most common NZ native plants.
It is the worlds tallest monocotyledon growing up to 10 metres high.
It has a tall straight trunk or trunks and a dense round head with a sphere of long narrow leaves
and it is a major characteristic feature of the N.Z. landscape.
The Cabbage Tree was used by the Maori people and early settlers.
The pith and inner roots were used to make a kind of porridge.
The early Europeans used hollowed out trunks as chimneys as they do not burn.

No, it doesn't grow cabbages