Many lists of flowers attractive to butterflies exist. Our list is by no means complete and serves only as a guide. Experiment, and observe what happens in a neighborhood meadow or garden. Note which butterflies are attracted to specific flowers. Flowers are not the only source of food for butterflies.
Butterflies also take nourishment from sap, rotting fruit, and dung.
A few will feed on carrion. You can make a simple feeding station for the fruit by placing a 12 inch square of Plexiglas on a post. Change the fruit every few days. You can also make your own nectar solution with a 5 to 10 percent sugar-water solution. Experiment and let us know.