Just make sure you are not planting Asclepias curassavica or tropical milkweed (unless you are in the tropics). That grows year round and monarch butterflies will lay their eggs in it and not migrate south for the winter. That leads to dead monarch butterflies and dead eggs.
I have a couple white ones growing in my yard. I’m going to place the seeds intentionally this year because some grow where they get trampled or knocked over. I started with one and I think I have 5 or 6 now, but only two are blooming already.
Edit: I just realized this is the pics comm, is this oc? The picture is beautiful. I love how intricate the flowers are, and it was captured nicely here.