Cover crops have the capacity to improve soil conditions by increasing organic matter, fixing nitrogen, breaking up compaction through root penetration, suppressing weed growth and preventing erosion of fallow ground. The organic cover crop seed we sell in this section are either grasses, legumes, buckwheat or mixes. In order to ensure that adequate populations of the nitrogen-fixing Rhizobium bacteria exist in the soil, leguminous cover crop seeds are often inoculated immediately prior to planting. Call for availability of larger quantities. Please note: We can only ship cover crops to addresses within the continental USA.