Sauromatum giganteum

From China, this aroid is rarely available.  The arrow shaped leaves can reach around 30cms in length and then in early summer, a large pitcher shaped deep purple flower emerges.  Similar to other species, it has a very memorable fragrance to attract flies - thankfully this only lasts for around a day!  Should be reasonably hardy in the UK in milder areas - best to mulch though in the autumn to help protect through the winter months.