Common name: Canna Lily 'Lucifer'
Species x generalis
Plant Link: http://plantsdatabase.com/go/37420/
Wow! A beautiful cana lily and a great photo! Is that your canna?
Go to the hyperlink entry for this plant, because it is not mine and there are some options that could be set, but I don't have personal experience with it.
Last year, I was at plant swap in Walnut Creek and this is flower, I saw near by the house, as I can remember. San Francisco is not a good climate for canna. There are three other photos of it posted as well.
I did some research on the plant, and I was surprised that Walmart has them. The Walmart site actually had a lot of care information that one usually can never find like soil ph.