(aka: Curcumorpha longiflora) I'm betting you've never grown a hardy boesenbergia. I hadn't either until 2006, when we planted a patch without high expectations for survival...surprise! From India south to Thailand, Boesenbergia longiflora can be found on moist mountain forest floors at elevations between 3,500' and 6,000'. Plants from the northern end of the range in India and China have proven hardy to 9 degrees F. Boesenbergia longiflora emerges in mid-to late June with 30" tall, pleated, canna-shaped leaves that are followed in early July with orchid-like flowers. The flowers are white with a carmine face and emerge from the rhizome on 3" stalks...simply unreal and very easy to grow in average garden soil.