Are you sure you don't mean the Gulf Fritillary? Monarchs don't lay eggs on anything but asclepias. That's the only plant the caterpillars feed on. The adult monarch butterflies do nectar on passiflora blooms. I love watching the butterflies and cats and have a garden full of host & nectar plants.
Karyn

Too much information! LOL.

See picture below for comparison to your "Monarchs".

Here is a link that might be useful: Gulf Frit

Those Amazing Fritillaries !!

(silly me)

FB why don't you send some of the Gulf Fritts up my way and I'll send some Monarchs down your way. I planted passies several years ago with the hopes of attracting Gulf Fritillary butterflies. Well many years and over 20 passion vine varieties not a single GF. On the positive side it did spark an interest in passifloras and my vines haven't been eaten. lol I do have loads of Monarchs though.
Karyn

"" FB why don't you send some of the Gulf Fritts up my way..""

It's a deal. I'll post a tiny sign near my plants so they can read it, along with some tiny maps to take with them.

=FB=

Maybe they can use my GPS. lol
Karyn

Hi Folks
More info on Fritts (Agraulis vanillae) and other butterflies at link below.
Myles

Here is a link that might be useful: Passiflora butterflies

Hi,

I was reading with interest the posts made on this forum. I started a few Passiflora seeds last May that someone gave me. The plants are still very small and in pots. A GF decided to lay 30 eggs on the passifloras last Saturday. I brought all the eggs inside and put them in a container. Nearly all of the eggs have now hatched and I have called all the nurseries locally and still do not have enough passifloras to feed 30 cats. I did order 6 passifloras from Mail Order Natives in Florida. They have not arrived and I doubt they will be big enough to feed this many cats. Here is a picture of Momma GF laying eggs on my small small passifloras last Saturday.

{{gwi:524104}}