The northern quadrant of the site contains a number of significant structures, artefacts and plantings. Aviaries and an adjacent vine arbour are a popular feature of the gardens, housing a variety of native parrots and farm birds. Behind the aviaries is the relocated and altered curators cottage (c.1878 and 1934). North of the aviaries past a herb garden is the secluded rose garden, which is enclosed on one side by columns transferred from the original Townsville Town Hall. This layout is a copy of the early twentieth century formal garden and includes the moulded terrazzo urn (1957) as the central focus.