posted 5 years ago
Hi Judith,
From what I understand the rizomes unpredictability wander. Most plants have the ability to detect things they're after, nutrients being one of them, and will intentionally go out of their way to take advantage of needed and available resources; however, it's hard to know how the rizome will react. If I'm not mistaken, I know individuals who have tried using compost to guide the plants decision making, and the vine didn’t cooperate. They eventually stopped trying, and just put movable trellises, wherever it popped up the following year. Unfortunately the vines can eventually migrate right off the propery.
Depending on your hardiness zone, there are varieties that establish themselves more permanently, and in using large pots can be moved to give extra winter time protection. These are of course less winter hardy varieties, more suited to subtropical conditions.
As far as the seeds you mentioned in your first post, lots of things could have moved them, but its hard to guess more spacifically without observing all the relevant details. That could explain plants traversing distances not explained by typical rizome migration.
Hope that helps!