I know I will buy more zinnia seeds. My first time growing them since moving to AL, they were so popular with the gulf fritilaries. Will also be looking for passion vine again. Haven't found any for sale the past few years, seeds or plants.

I haven't ordered any seeds yet but will.
I'm sure your butterfly garden will be even more rewarding next summer.
But - Since you have the other milkweeds and it sounds like you're limited on space, I'd skip the Common Milkweed (asclepias syriaca) and just plant the others. Common Milkweed can be pretty aggressive. In my garden, I've tried to dig it out and have sprayed it with Roundup a few times but it returns the next spring. I have plenty of room, I just didn't like where I planted mine but I think it's there to stay. lol
That said, the leaves of Common Milkweed get big and they're great to bring in for the Monarch cats. It doesn't take them very long to eat all the little leaves on my Tropical Milkweed, so I'm glad I have the other. Just wanted to warn you about its nature. It might eat your other perennials.