Last year I frost seeded some clovers in the back pasture (frost seeding is a fancy name for just throwing seeds on the ground and the early spring freeze/thaw/rain snow moves the seeds down into cracks in the soil and puts them in a place to germinate).
The pasture was greatly improved from its grass-heavy state. So this year I’m doing a couple more types of clovers and some birdsfoot trefoil. The seed mixtures are so very colorful.