So I've been saving the water from the initial seed soak and giving it to my succulents and other house plants. I was under the impression that water was filled with growth inhibitors from the seeds, but I dont waste water, living in Cali. All the house plants are thriving. They love that...
I would not use mint....it can really grow out of control. I like to use wheatgrass as a cover crop though, so maybe you want to think about that for a third. Alfalfa and clover are amazing though and should do the job just fine.