Out of everything in my garden, the local bees love my maypops (passionfruit) the most. It’s not uncommon to see three or four of them competing for the same flower. Some days I find hundreds of bees and wasps on the vine at a time.
I planted two more vines earlier this year, so hopefully next year I see some actual fruit instead of the flowers falling off after maturing.
Yeah not much advice as far as wintering. Instinctively, I’d prune back and cover in several inches of mulch. They really don’t mind being cut back, so you could potentially cover with plastic during really cold spells.
Good advice, thank you!