I'm getting fairly impatient to start my next garden project but am also a little hesitant to get started. I have a decent sized area in my backyard that I'm going to sow with wildflower seeds (echinacea, rudebeckia (hirta and fulgida), milkweed, and some lupines). I'm in zone 6a (City of St Louis). I'm debating the right time to directly sow these seeds this fall since site they will be sowed is prepped and ready to go. Should I wait unit February or March to directly sow or is it ok to do so in now in mid-October? One part of me says they're (mostly) native wildflowers and should be fine if I sow them now, but a small part says to wait because I want to make sure they'll germinate since I don't have an overabundance of seed.

Would like some guidance to help me make up my mind. Thanks!!!

PS: I'm throwing in some other annuals that I'll start indoors in late March or early April to fill in and add some long lasting color.