Mine threw off shoots that grew in the yard, where the root shot over and a plant grew up from it.
Some of them were some distance from the mother plant too.
I think you need to plant a root. The roots spread though, so it should be easy to dig a root.
However, I feel like I should warn you how invasive wisteria is here. I cant kill the sucker! It tore down a part of the deck that it was planted next to. And you really need to study how and when to...
My Turkeys went broody and hatched the eggs but as soon as the babys were hatching the mommas stomped them, so I very much recommend you take the eggs as soon as they are ready to hatch or put them in an incubator and do the work yourself.
Yes, a hen will set when she goes broody even on no eggs.
I hate to see all that hard work for nothing, and most hens are such good mommas.
How about giving her a couple eggs to set on?