I found it in the database!
Or least I found a pic of yours showing it was it.
Italian Bugloss (Anchusa azurea)
Italian Bugloss (Anchusa azurea)
But then on Apr 30, 2012, you said you got Anchusa azurea “Alkanet”
(and its in the same spot in your garden behind the torch lilies, so I'm confused)
(there isn't a database listing for Anchusa azurea 'Alkanet' yet)
Don't think I have the space for it and looks like it not listed as being a container plant candidate.