Earth Science® Aromatic Wildflower MixBrighten your landscape with a burst of brilliant flowers that will return year after year. We make it easy with this all in one formula that contains natural wildflower seed, mulch, plant food, and soil conditioners. Our Perennial Mix is a carefully selected blend of a dozen popular perennial wildflowers, including Siberian wallflower, lance leaved coreopsis, sweet William, columbine, purple coneflower, and black eyed Susan.