Neat! I am trying to cultivate what swallowtail larvae like to eat here. Not having the best success, but might catch some broods later this summer.
NEXT year, I'll try starting small plants, rather than trying from seed.
I hope you can share updated photos as the babies mature. (:
Which Swallowtail are you raising, and where are you located??
@Leafhead I live in northern GA. I am trying to get wild adults to lay eggs on plants in my yard. Black and Tigers are very numerous here. I planted two types of dill and some butterfly wild flower mixes. Years ago, black ST larvae ate all of the dill from my personal herb garden. The plants are just getting up, so, time should tell.
@Zster
Try planting a Liriodendron (Tulip Tree) somewhere in your yard. The Tigers use this as a host on the East Coast, whereas they use Wild Cherry (Prunus serotina) here in the Midwest.
You can also plant other things to attract other Swallowtail in your part of the country.
Spice bush will get Spice bush Swallowtails, Pipeline (Aristolochia) will bring Pipeline Swallowtails and Citrus, Wafer Ash, Rue and other related trees and bushes will bring Giants.