Jacob's Ladder, seed questions

This is the first yr my Jacob's Ladder (Polemonium) has flowered. (PS: Polemonium caeruleum (Jacob's Ladder)) I would like to save some seed from it. The seedpods are still green. Do the seeds "explode" out? Is seed the way to increase them or division in a yr or 2? Thanks

 

I don't know if the "explode out" but they will re-seed like crazy!!!!
Deanna
:-D

 

Well the pods remind me of Johnny Jump Up. Those pods send the seeds flying far from the plant. I guess I'll find out soon enough. lol

 

Because they are soooo little I think the wind helps them out too!