Low Grow Grow Grass/Native Wildflower Mixture is the perfect combination of grasses and wildflowers that provide the beauty of the wildflowers accented by the aesthetics of the low growing prairie type grasses. Weed encroachment is the primary problem with wildflowers. The grasses are added to maintain an adequate environment for the wildflowers to grow and flourish and not be crowded out by unwanted weeds and grasses.