CORDYLINE australis 'Torbay dazzler' / (cabbage palm)

frost hardy evergreen shrub / tree
height: 15 m.
spread: 5m.
prefers well drained soil
upright habit, few branches, rosettes of foliage
Flowers summertime-autumntime white (though unlikely in uk except for mature specimens in mild areas)
sword like foliage green-white-purple