I am wondering about anyone's experiences with Giant Milkweed (Calotropis gigantea).
I picked one up at Butterfly World. It is supposed to grow to 10 feet and support over 1000 monarch larvae.
It won't let me hot link, but there is a pic in the gallery of a monarch chowing down.
I have been moving them to this plant around second instar. They eat 1-2 leaves. I have not managed to bring one in to pupate yet, so I do not know how they turn out.
Only one egg has been laid on this plant that I have found.