Seen a few summer blends with buckwheat. Kind of wondering what to do myself, both at the house and at camp.
Where you get your buckwheat, can you get anything else?
I always put clover in anytime I seed. It's slow to start, and it will start when its ready. Seen vetches, sunflowers, millet, hemp, various peas. IF you can source some it locally, or order some of the lighter lbs / acre stuff.
Also, you havent mentoned your problems or goals. Certain plants give and take things to the table. Weed supression, biomass, getting nutrients from the air or deep in the soil. You doing this for a better fall plot, or need to provide summer food for deer.
You can put rye or oats in as soon as the ground thaws, then do a summer blend in may.
Whats been in the foods plot before in the sumer.