RE: spring/summer plot
I'll Second Ladino Clover - Maybe a blend of Ladino and another clover if your weather can be dry or fickle.
Alfalfa planted on Acidic soil will usually fail - if not then its usually to bitter to attract too many deer. Lime to 6.0 Ph for Clover if you can and close to 7.0 for alfalfa.
Good luck.