Barley (Hordeum vulgare) Type: cool season annual cereal grain Roles: prevent erosion, suppress weeds, scavenge excess nutrients, add organic matter Mix with: annual legumes, ryegrass or other small grains See charts for ranking and management summary. Inexpensive and easy to grow, barley provides exceptional erosion control and weed suppression in semi-arid regions and in light … Continue reading Barley