I love my Passiflora incarnatas. I dug up some runners & shared them with local friends. I even have many fruits on them. I dug up a runner & planted it against our rose arbor about a month ago and the little sucker is about 9 feet up now & blooming. Man, do these plants love hot weather. More than we do. LOL
Yes mine took off with the hot weather we had in Aug they do love the heat.
Got a field full next to the house and the trees are full of incarnatas i have to keep them cut back on the plum tree but i have let one runner stay in it for the fall.
I added 7 more this year but have them in pots till the roots get bigger.
next year i will put them in the ground and let them go where they want.
They don't break the soil here in Pa until sometime in June. When you dig them up, you have to dig deeeeeeep because when they grow, they grow from a long tap root that starts sending out horiz. runners underground. If you don't get down to the bottom of the tap root with the roots on and part of the runner, it won;'t make it. I would use some rootone and root stimulator to water them with once you get them dug & repotted and keep them out of direct sunlight until they get over the shock. Judy Showers
Also I would add...try to find a smaller shoot to dig up--the roots won't be as large and you have a better chance of getting most of the roots. If you find some, there will be individual vines coming up everywhere, and you should have your pick of different sizes. If they wilt a little, you can try to cover them with a plastic bag. If they wilt a lot, you have probably cut off too much of the roots when you dug them up. In that case, I would cut off all but about 4 or 5 leaves (leave the vine maybe 18 inches high), and reduce the leaf size of the remaining leaves. That way the roots that you do have can support the leaf area. Once the roots begin to grow again, new shoots will grow from the leaf nodes. The Pennsylvania vines may have deeper roots than ours in order to survive their winters. I have successfully dug up small incarnatas just going a shovel length deep. But I've killed some too. Good luck!
Good point, Mark. I, too, dig up the runners. Yes, I think you are right. In Pa, the roots are probably much deeper. I know if I dig up enough to get the horiz runner the shoot is attached to, I get enough roots for the transplant to be more successful.