Propagation: Need info on harvesting cranesbill seeds, 1 by perenniallyme

perenniallyme wrote:
On some of my cranesbill, I waited until the 4 seeds popped up from the base of the sticklike piece (see pic) and then harvested before the seeds fell off. Question 1 - did I wait long enough to harvest these - i.e. will they be viable?
On another cranesbill, I harvested some before the seeds popped up from the base. Did I harvest too soon? When can these seeds be harvested?

And are the seed-like pieces at the end of the curli-ques the actual seeds - or are these pods that contain the seeds?

Any help much appreciated!
Thanks.