Thank-you for your information on this beautiful plant!
I am excited for you.
I had no idea of their being fragrant either.
Have you heard anything about how they might do in zone 7 in the Northeast where winters are briefly quite cold, and summers briefly hot?

Best wishes,
Matt Di Clemente

Terra Nova says this:
Perhaps the best Corydalis for the south. Fabulously fragrant cobalt blue flowers adorn the upright habit of this garden jewel. This selection does not go summer dormant. Flowers emerge in May and bloom through July. This superior selection does well in moist soils.

It is listed for zones 6-8

Wher can i get it online? i havent seen it locally