Prairie Flax (Linum lewisii) usually carries delicate powder-blue flowers on nodding stalks. However, the flowers are sometimes white or lavender. It is a perennial, blooming in summer over a long period. The needle-like leaves make a fine, lacy contrast with the wider blooms. It grows fast to one to one and a half feet tall.
This plant prefers full sun, takes low water, but needs good drainage and does not grow well in clay soil.