The Mediterranean Climate Region of Western and Southern Australia display illustrates the diversity of plants found in heathlands, home to Australian members of the Proteaceae family, Banksia, Grevillea, Lomatia, and Hakea together with the Australian heath, the Epacridaceae family. The mallee scrubland biome, a eucalyptus dominated scrub with under storey shrubs is home to Callistemon linearis, Correa reflexa, Banksia marginata and kangaroo paw Anigozanthus manglesii. The display shows the relationship between elements of the flora of Western Australia and the flora of the South Western tip of South Africa. The display highlights how plants of shared morphology have evolved through convergent evolution.
Plants have been established outside against with the shelter provided by west facing stone wall. A supporting display located in the cool zone of the glasshouse is home to more tender species.