Info copied from the web . It is in bloom now the flowers have a spicy scent .
Neomarica gracilis, (Brazilian Walking Iris). Native of regions from Southern Mexico to Brazil. Also known as the twelve apostles, has intricately designed orchard-like white flowers of white with mottled crimson and a blue-violet banding. Glossy green, arching leaves, like an iris which are sometimes more than 24 inches long. Flowers from spring to late summer, prefers partial to full shade. Flowers last only for one day, but multiple blooms will come from the same stem in rapid succession.
Grows in grassy clumps up to 5 feet wide and equally high, does well in pots and particularly suitable to hanging baskets. Flowers appear in one year, two in cooler climates. May survive in the ground in zone 8, best in zone 9 or warmer climates. Require a well drained soil with reasonable moisture. Propagation is very easy. Finished blooms will develop air roots from which a small plant will grow. Plant the youngster in a 4-inch pot of soil still attached to the mother plant, or snip and repot. Keep well watered and repot when potbound.