David's Garden Seeds Cover Crop Buckwheat D73101 (White) Organic Seeds One Ounce Package Mature in 3045 days as a green manure crop, 80 days for grain Seeds are Non-GMO and hand packed by David's Garden Seeds in the United States of America It is an excellent crop for utilizing the nutrients in rock powder fertilizers. The fast growing plants choke out weeds, bees love the white flowers that appear in 45 weeks, and the tender stems are easy to cut down when the crop's done Germination rate about 80% or better