Amorphophallus konjac 'Nightstick' - Cold Hardy - Seedling tuber

This is a common species of cold hardy Amorphophallus with a large (~18 inch) flower. It is (badly) day time fragrant, but the fragrance only lasts about 1-2 days. 

This cultivar has a completely patternless petiole that is dark brown/black, hence the name! It is a really neat one that stands out in any collection.

I have kept it planted in my garden where it dropped down to 7 F for 72 hours last year, and it came back without any problems!