These structures are aerial tubers, also called bulbils,
starting out as a white patch at leaf nodes and then swelling to form
white balls. They can then be laid back on the dirt in the pot, or laid
on the dirt in a pot to the side of the plant, adding a little sand
under the tuber to help prevent rot.
Posts
@Asarum not seed pods, as they have bead like tubers on the vines.
Thanks for reply
https://www.reddit.com/r/StringofHearts/comments/p250yl/what_exactly_are_these_pointy_spike_things/
https://www.reddit.com/r/gardening/comments/knnkam/spikes_on_ceropegia_woodii_string_of_hearts_have/
Can I ask how you manage to keep yours so lush and healthy please?
Quote...."Seeds are readily produced in long thin pods and germinate easily."
https://www.google.com/search?q=ceropegia++seed+pods&tbm=isch&ved=2ahUKEwj61cH_ipf4AhUm5IUKHSO4CaYQ2-cCegQIABAA&oq=ceropegia++seed+pods&gs_lcp=CgNpbWcQDDIECCMQJ1DvBlj9DGCVIWgAcAB4AIAB2QKIAdkJkgEHMC41LjEuMZgBAKABAaoBC2d3cy13aXotaW1nwAEB&sclient=img&ei=WQmdYrrFOKbIlwSj8KawCg&bih=577&biw=1280&rlz=1C1CHBF_enGB785GB785
The long green pods in your photo are seedpods that form from the flowers.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.