I can't speak for your Toronto climate, but from personal experience you won't have luck putting them in the ground. Edulis varieties take more than one growing season to mature and produce flowers/fruit. Even with my mild winters and extended growing season in Texas, the one edulis I planted in the ground never flowered (although it did get to be an impressive size). Your best bet would be planting it in a large pot, so you can cut it back and move it in over the winter. And since edulis isn't self-fertile, you'll need a second plant as well if you want fruit.

Thank you for your response. I guess pot it is then! If you cut back the plant at the end of summer, what would be your recommendation for how much to cut it back and could it be stored in a cold dark place for winter?

I can't help you with how much to cut back--I haven't done so with mine yet, because they're only a few feet high. They won't like "cold and dark" however. They'll do fine with cool, but will want some source of light, even if it's only a bright florescent bulb. And any new growth would need to be hardened off when you move it back outdoors--my edulis and vitifolia both put on a bunch of new growth that fried quickly once I moved them back outside.

Old thread but curious to know how it went. Yellow passionfruit could be either sweet granadilla (passiflora ligularis) or yellow passion fruit (passiflora edulis var flavicarpa). Around here, sweet granadilla seems more common at grocery stores - I started growing a couple plants from grocery store fruits. I'm also growing purple passionfruit (passiflora edulis), passiflora manicata and passiflora tripartita var azuyensis. Neither of these are frost hardy and require more than a year to fruit, so I'm growing them in containers that I bring indoors for the winter.

I also have maypop (passiflora incarnata) and bluecrown (passiflora caerulea) which are a bit more cold hardy (if you plant in-ground, the vines will die back in the winter, but the roots can survive and put out new shoots in late spring/early summer), but I decided I'll grow those in containers that I bring inside too. I have gotten fruit from my maypop already.

So far, they seem to be enjoying their first winter indoors and have gotten quite large. Hopefully they can hit the ground running and produce fruit next year. It seems plants grown from cuttings will produce fruit within 1-2 years, plants grown from seed will produce fruit within 2-3 years.

Update - maypop fruit is ripening now. I've gotten 6 so far, with 30 still on the plant that will hopefully ripen in the next 2-3 weeks. Got one flower on my passiflora edulis (purple passionfruit) and one other flower bud coming up, but I think it's not quite ready to produce yet. Maybe indoors over the winter with the warm 20C temperatures it'll push along a bit of fruit, or maybe I have to wait until next summer.