Giant Swallowtail (Papilio cresphontes) butterflies use the following plants as host plants:
Remember: Always purchase host plants by their botanical names. The same common names can be used for several plants, sometimes not related at all.
Citrus plants (orange, lemon, etc) – Citrus spp.
Rue – Ruta graveolens (Some people have bad reactions to rue, including marks on the skin as if they were burned.)
Hop tree – Ptelea trifoliata
Hercules club – Zanthoxylum clava-herculis (Thorny)
Prickly ash – Zanthoxylum americanum (Thorny)
Wild lime – Zanthoxylum fagara (Thorny)
Gas plant – Dictamnus albus
Sea torchwood – Amyris elemifera
Mexican orange – Choisya dumosa
White sapote – Casimiroa edulis