Thank you for the replies.  I have several members of the Restionacea family, most from South Africa, 2 from Australia and 1 from New Zealand. Eucalyptus ficifolia, Acacia cultriformis & floribunda, Anigozanthos flavidus, Metrosideros bartlettii, robusta & excels, Scleranthus biflorus, Geranium incanum, Grevillea robusta, Callistemon Captain Cook & pallidus, Pesudopanax 'Gold Splash', Cordyline parryi, stricta & obtecta Green Goddess, Richea scoparium, Banksia ericifolia, Dieramas & Agapanthus, Orthrosanthus & Isoplexus, Beschornaria yuccoides.  Another question, I would like to grow Proteas do they grow well here.