Sometimes known as the Walking Iris. Neomarica caerulea forms large clumps with 3-5 ft long stiff, pale green, sword-like leaves. The strikingly beautiful 3-4 inch wide blue flowers appear above the foliage in late spring. The flowers seem to open only for a day and then take a short rest to open again several days later. This rest and bloom cycle goes on for 4-6 weeks. Plants will grow in full sun but foliage colour is best in light shade, water regularly.