Take some of the work out of planning your garden each year, with a brilliant mix of perennials that return year after year. Earth Science makes 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 popular perennial wildflowers including Siberian wallflower, lance leaved coreopsis, sweet William, columbine, purple coneflower, and black-eyed Susan. Earth Science Mixture/Blend Seeds | 12137