Great pods! They should get much bigger, maybe develop protective spiky things. They don't burst open, and turn brownish before cracking. Once you see a crack develop, cut the pods off. Once they get rained on, that can rot the seeds. Store seeds in a paper bag because they will be quite moist, so they don't rot. If you put them in pots (with drain holes) outside for winter, forget about them until spring, you should have good results. (Winter sowing.)
You might want to leave one pod for the seeds to go naturally where they will, and so you can see the process. Each seed has a little cotton parachute so it can fly away.
