Talking about that original link, I haven't read that through thoroughly either, it says: »The plant can be grown using either stem cuttings or the purple rhizomes at the base of the stalks. It will not reproduce from the tubers, which, when unharvested, rot in the ground, providing fertilizer for later crops.«
So the German Wikipedia says explicitly that Yacon cannot be grown from seeds. The English Wikipedia says it can be grown from cuttings and some special rhizomes but says nothing about seeds"

I guess i grow the seeds i receive and will see…
So the German Wikipedia says explicitly that Yacon cannot be grown from seeds. The English Wikipedia says it can be grown from cuttings and some special rhizomes but says nothing about seeds"

I guess i grow the seeds i receive and will see…