Cordyline Australis or cabbage palm lends a jungle quality to a garden that may not be ideal for many plants. 
This is because it thrives in strong wind and will stand dry/ semi drought conditions.
This particular cordyline is hardy down to - 8 or 9 degrees C (and lower if top tied in some cases) when established ( 4 feet or over) but requires full sun to flourish. 
Produces fragrant white flowers in summer.
 
  
  
 