Howdy, I see a lot of discussions on threads about cover crops, pasture mixes, and sourcing seed, but I didn't see Albert Lea Seed listed as a resource for those of us in Minnesota, Wisconsin, Iowa, North Dakota, South Dakota, Illinois. They're located in Albert Lea, Minnesota, and definitely worth a look. Family owned, local, and independent. Seed suited for Midwestern properties.
To be fair, I am biased, because I work there, but I went to work there because their corn and soybean lines are all non-GMO. They have plenty of organic options for organically certified farms, too, with more coming every year.
I'm excited about the frosty berseem clover I got there this year. I'm testing Frosty Berseem this year in a cover crop mix in the garden. Apparently it germinates in soil at about 35 degrees Farhenheit.
In addition to the big farm crops like corn and soybeans, Albert Lea Seed sells alfalfa, winter rye, oats, barley, wheat, emmer, triticale, clovers, timothy, a lot of forages, millet, hairy vetch...I'm just poking through their catalog as I type here. There's a lot more.