Warm season crop for building soil and smothering weeds.
Planting several successions in a season can be effective for eradicating persistent annual weeds which are out-competed by buckwheat's quick growth. Loosens clay, increases phosphorus and holds fertility for the next crop. Sow after danger of frost has passed, up to 45 days before last frost. Seeding rate: 35-135 lbs/acre, 2-3 lbs/1000 sq ft.