(Sisyrinchium californicum) Yellow-eyed grass is a small perennial about 8″ tall that forms a little clump of iris like leaves with bunches of yellow flowers that appear May through June. Yellow-eyed grass likes moist areas, but can become drought tolerant in a conventional garden. Evergreen foliage -however, may go dormant in the hottest parts of summer if it gets too dry. Tolerates seaside conditions, alkaline and clay soils. Deer resistant.