When we first moved to our new house, I planted a Cordyline Australis as a small ornamental plant in the garden.
Sixteen years later the small ornamental plant has developed into a twenty foot, fully fledged "Cabbage Tree".
In early summer, large flower spikes develop with sweetly perfumed flowers, now I usually remove these flower spikes after flowering as they can look a bit untidy, and to be honest, I wasn't sure whether they should be removed or left alone, this year I left the spikes on the Tree, the flowers developed into small white berries.
Very attractive to the Starling Flocks, who seem to find them irresistible.
Apparently this is a native plant of New Zealand.
So no more flower spike removal, leave them for the birds.