I wrote recently about the Australian Rock Garden at the Arboretum & Botanic Garden at UC Santa Cruz, as a resource for home gardeners. For today’s column, we’ll outline the history, design and development of this special feature at the Arboretum. The accompanying photographs have been provided by the Arboretum’s volunteer photographer Bill Bishoff, with our appreciation. In the mid-1980s, the Arboretum received a large shipment of topsoil (some 15,000 cubic yards) that had been excavated from another location on the UCSC campus. This soil was delivered to the Arboretum’s Australian Section, designated as the Elvenia J. Slosson Research Garden. The Australian Garden’s Curator, Melinda Kralj, had conceived the development…