The germination of many of the milkweeds can be erratic, meaning not all seeds sown will germinate at the same time. You could expect to find seedlings over a period of even weeks, not days.

I am growing milkweed this year, as one of my "test plants." I had 3 of the seeds germinate after just a few days (4-5). The others never came up. I only wanted one or two plants though.

Oh okay guys i might just get those rogue seedlings then put then cover up the flat and put it outside and hope for sprouts in spring