Yay!
This is one that I can grow
survives my zone 5 winters in-ground, gets tall and grand, puts on a lovely end of season show 'til the first freeze with those gorgeous blue flowers, and helps the bees prepare for winter.
Here are a couple more pictures from last October
It does seed itself ridiculously well, so I'll try to extract some babies for you if you want some Debra and Marilyn