What should I do with the seed pods on my white bower vines?

Question

Plants are approx. 2 yrs old and haven’t developed seed pods before.

Answer 1

You have a couple choices. First, let the seed pods dry on the vine. If you want to plant the seeds elsewhere, remove the pods and, when they're totally dry, break them open and collect the seeds.
Your other choice is to leave them on the vine until they dry up and break open on their own. The seeds will drop onto the ground and you'll have lots of new bower vines in the spring. Good luck with this beautiful vine. Here's an article for you: https://www.gardeningknowhow.com/ornamental/vines/bower-vine/growing-bower-vine-plant.htm