'Lucerne' Blue-Eyed Grass plays it cool most of the year with neat, iris-like tufts of deep green foliage— then surprises everyone with a burst of deep blue, yellow-centered blooms starting in mid-May. The petite ¾" flowers keep popping through July, attracting native bees and small butterflies. Easy to grow and great in full sun and well-drained soil, it’s the perfect front-of-border plant that quietly steals the show. Native.