Last year I planted 4 rhizomes and they all sprouted some bines. I didn't train them or cut them back figuring I'd just let them grow out as they would.
Well, last fall I did not cut the bines back and now the snow has cleared, the plants all have a bunch of dried out bines sticking out all over the place. Should I trim them back now? or wait until I have some sprouts to train? (if I get any) I'm in lower Michigan.
I plan on cutting each plan down to one or two bines this year and training them on a garden trellis and possibly up to my pergola.