Research by MacTavish (1995) illustrated key areas where there was the potential for significant increases in the concentration of floral extract, including volatiles such as ??ionone, to be achieved via management practices. These include harvest timing, post-harvest incubation of flowers and the extraction protocol used; the potential of the first two practices are modified by clonal differences. All of this work was preliminary, and on a small-scale. It was imperative for the essential oils industry in Tasmania that the potential for using this information on a commercial-scale be investigated.