The type of wildflower seed mix you choose depends on site conditions and the effect you want to create. Commercial seed mixes may be formulated using a variety of flowers with different heights, colors and bloom times. Usually, a mix of self-seeding annuals, biennials and perennials is most effective. Wildflower mixes also may contain some grass species, which can fill in spaces around flowers, add texture and color contrast, and provide support and protection to wildflowers. Grasses also can reduce soil erosion and enhance wildlife habitat. On steep slopes, existing or seeded grasses can reduce soil erosion until wildflowers become established. Use plastic netting, jute twine or straw mulches on the soil surface to help establish wildflowers on steep slopes. For more information see the fact sheet, Wildflowers in Colorado.
