seeds on heavenly blue

The foliage is beginning to die on my vine. When, where and how do I save the seeds??? I'm in z7b. I know what they look like but I can't find any. Are they falling off and I'm not seeing them?

berrygirl - if you have seeds, they'll be in pods, often about pea-size right at the base of where the flower was. It can often take a month or more for the seeds to ripen.

How long ago did the flowers bloom?

They're in full bloom now and have been all summer- absolutely gorgeous. That's why I want to save seeds to put it somewhere else and I'd like to share, too.