DC, Russ is correct on all the suggestions but I was in your shoes about 8 years ago and I spent quite a bit of time and money trying all the different seeds from my local co-op with marginal success. The smartest thing I did was to try some of the wildlife mixes.....ie Imperial Clover and Biologic etc. Most of these blends are formulated for your area and if you plant properly they will outperform a single seed planting.

I sure the next post will talk about the cost..........Yes, they are a little more expensive but if you waste time planting and testing it won't be long before the are cheaper than shopping at the co-op. If you have the right soils go with perennials and cut out planting every year. It has saved me time and money.

My best success was with Imperial Clover I could not get them to eat the Biologic. I also have just planted Extreme and so far it's doing well.

Good luck.