Luzula Nivea, or snow rush, is a slow spreading evergreen perennial ornamental grass forming a loose clump of narrow, dark green leaves to 30cm long.  In mid-summer it produces clusters of small, shiny white flowers on stems to 60cm tall.  

Grow in poor to moderately fertile, humus-rich, moist soil in partial to deep shade; tolerant of sun if soil remains reliably moist