Sauromatum venosum

From the Himalayas, an interesting addition to a jungle style garden!  The foliage is attractively exotic in itself and then in early summer, the deep purplish flowers appear with their very distinctive fly attracting aroma!   Prefers a humus rich soil in partial shade.  Once a good size, it can be left outdoors in milder spots, ideally with a mulch to protect it.  Clumps up over time.