|Image from Florida HTR|
Giant Swallowtails feed off the nectar of a variety of plants, including Azaleas and Goldenrods. The caterpillars feed off of Citrus trees, and are considered to be pests by growers of Sweet Oranges. Giant Swallowtails prefer to lay their eggs on Citrus plants, and they do so by laying single eggs on various trees. The larvae eventually hatch, and then go through five phases before they form a chrysalis.