Blue Eyed Grass

A genus of about 90 species of annuals and rhizomatous perennials, some of which are semi-evergreen.  It is native to North and South America.  They thrive in habitats ranging from mountainous areas to meadows and coastal sands.  They produce clumps of linear to sword-shaped, mostly basal leaves, often forming fans.   In spring, and summer, upright, often winged stems bear star, cup, or shallowly trumpet shaped blue, yellow, mauve, white or rarely pink flowers.  This variety, S. graminoides, syn S. angustifolium, S. bermudiana, or S. biraneum, self seeds freely.   Its hardiness rating is zone 5-8.  It can be grown in poor to moderately fertile, well drained soil, neutral to slightly alkaline, in full sun.