H.A.F.
a.k.a. Rusty Nails
I had a pot of the old soil with a cover crop that I just set outside to go to seed. Only one of the varieties of seed did that so here's my first "harvest" of what I think is alfalfa. That's enough for a cover crop on a few pots, but I can see doing this near or in the garden next season to just make my own seeds for that. The alfalfa can be a good sprout tea as well.