Which passion vine species are safe for caterpillars?
First, it depends on the species of butterfly caterpillar. Some butterfly species can eat and grow on some passion vine species that will kill others.
GF = Gulf Fritillary
ZLW = Zebra Longwing
VF = Variegated Fritillary
J = Julia
? = Although some have ate well, some did not eat and died
Unsafe or unknown