Complex sentence: One of the largest herb farms in the southern hemisphere, Coolibah Herbs, is based in Pearcedale with ancillary farms over in Gippsland and across the Mornington Peninsula.
Split into simpler sentences: One of the largest herb farms in the southern hemisphere, Coolibah Herbs, is based in Pearcedale. It also has ancillary farms in Gippsland and across the Mornington Peninsula.