I am in NE Ohio and bachelor buttons reseed like crazy here so I think you should be fine with those now. I am beginning to think nothing will kill those buggers. I did snapdragons a few years ago but I think I waited until early April...but they reseeded in my garden that year so I would go ahead and try them now. I have only direct sown Bells of Ireland so I will have to see what others say about those! ;)

I've done all three. This is my first year winter sowing and from what I understand too is these reseed so they should be fine.