WY PF Eastern High Plains Sandy Soils Mix. Designed for sandier soils on Wyoming's eastern plains with a 75% grass to 25% forb/legume mix ratio achieving 27.4 seeds per square foot. Confirm with your conservation planner before you use this mix for your NRCS project. Click on PDF below to view mix in the NRCS Seed Calculator. Includes (#s/ac): Yarrow (0.01), Sand Bluestem (Chet) (1.35), Blue grama (0.2), Purple Prairie Clover (0.11), Blanket Flower (0.18), Maximillian Sunflower (0.2), Prairie Junegrass (0.1), Blue Flax (0.14), Alfalfa (VNS) (0.25), Western Wheatgrass (1.5), Lacy Phacelia (0.03), Black-eyed Susan (0.01), Little Bluestem (0.4), Indiangrass (0.9). Updated January 2024.