True “smother crop” since it grows a thick canopy quickly and out-competes summer weeds. Buckwheat is the perfect crop to fill in the rotational window between spring and summer or early fall crops. It can reseed itself if not managed closely, but easy to kill (seedlings also readily frost-kill). Good addition of broadleaves, especially for a mostly grass-based rotation. Fibrous root system, loosens up and conditions soil, makes organic phosphorous available. If left through bloom, it will attract pollinators.
Recommended seeding rate: 50-70 lbs/A.