After searching the net for wildflower seeds and asking here, I settled
upon American Meadows, http://www.americanmeadows.com/

Since it was cheaper to order by the pound, I ordered a pound of midwest
mix and some red poppy seeds. The whole order went smoothly and
everything was packaged well and they threw in a bunch of sampler
packages which was nice. So far, until I actually see these seeds grow
next year, I have to give them a thumbs up.

Now that I have way more seed than I can possibly plant I'll be like
Johnny Appleseed helping the neighbors plant some meadows.