Arthropodium cirratum, known as Renga Renga Lily or New Zealand Rock Lily, is a hardy, clumping evergreen perennial from New Zealand, prized for its lush, strap-like foliage and sprays of delicate white, star-shaped flowers in spring/summer, thriving in coastal spots, part shade, and dry to moist soils, making it a low-maintenance choice for borders and mass plantings.