Tagasaste (tree lucerne) is one of the more useful plants in the winter. Food for the bees and fodder for livestock. Think about this very useful tree as a quick growing shelter and something that will drag nitrogen from the air into the soil. Pretty as well.
Where to source them?
Awapuni Nurseries (https://awapuni.co.nz/) sell these amazing trees
as does our own local nursery in Te Hana (https://tehananurseries.co.nz/).