Orthrosanthus polystachyus – A native of Western Australia with large, evergreen tufts of long sword like leaves with many spikes of clear light blue flowers. Although each flower only lasts a day, new ones emerge each morning over a long period from October to January. Very hardy, stands sun, heat, dry, wind and frost. This lovely member of the iris family is used extensively for landscaping and mass plantings. 60cm x 60cm.