Flax flowers give a distinctly New Zealand feel and last a lot longer than the fabled pohutukawa. The smaller ones have strong flower stems with collections of upright flutes. These can be placed on their own but give some structural bite to many presentations.
Roses are an absolute Christmas classic and the right varieties can also add scent as well as sparkle to your table. I find roses always steal the show so I tend to think of them in relation to other foliages rather than other flowers. I like the idea of using the silver underside of ponga fronds with roses. The foliage is delicate enough to complement the roses nicely as well as give a distinctive New Zealand feel to the whole affair.
Sweet peas, if you have them (and if you don't I recommend them for next year) are powerful en masse. The velvet butterfly petals are always distinctive in the garden but take on a notable energy when collected together. I like these with other flowers such as hydrangeas, roses and oddly enough leucadendrons. A little posy of sweet peas in the loo will also help to keep the air fresh, within reason.
Clematis are a beautiful flower on a vine so can be worked around strong stems such as the flax flower or bird of paradise, or even draped over the edge of a vase as a spot of casual "look at me, I'm so beautiful and I'm not even trying" charm.
Manuka flowers are another Kiwi favourite and look pretty in big bunches. I like these with parsley flowers or queen anne's lace. Try small green bamboo shoots as a bit of a contrast to the intricate flower and leaf arrangement of the manuka. And, like roses, I think they look dandy with ponga fronds.
No New Zealand Christmas list would be complete without the pohutukawa. Even though the needles fall out and go all over the table and the flowers will be lucky to last through the day, the pohutukawa still ranks as our number one Christmas bloom. When push comes to shove you can't go wrong (unless you fall out of the tree while you're picking them) with a big bowl of these jolly Kiwi summer blooms.