Passiflora Incarnata: Cold Hardiness? How cold does it tolerate?

8 years ago

How cold hardy is Passiflora Incarnata? I have seen it labeled as zone 6, but how accurate is that? Any passiflora even more cold tolerant?

I really want to try it but I live in Canada (Southern Ontario, Niagara region), and from what I can tell officially my location is listed at zone 6. So it seems like it should be able to grow and survive the winter. So, i' wondering if its worth trying because I don't want to care for it and get excited about something if it just dies in the winter.

How far North and how cold do you know it can tolerate? It's fairly mild here with some really cold nights sometimes, but zone-wise it's suppose to do fine, right?

If so, then how come I have never seen anyone grow it here? Is there some kind of problem with it that i'm not aware?

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Comments (3)

User
8 years ago
last modified: 8 years ago
I had no idea they were hardy to that zone. At least it says it is to z 5 or 6. I was reading, prone to root rot in cooler /colder climates. I knew them to be hardy for sure to zone 7 or 8.

It doesn't hurt to try it once. start seeds in the late winter, plant outside May and let it get a good full season of growth before the cold.
A W thanked User
A W
Original Author
8 years ago
last modified: 8 years ago
@Matt

I guess I don't have anything to lose by giving it a try, although it is kinda wet and slushy in fall and winter and on the dryer side (less rain) but humid in summer
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FrozeBudd_z3/4
8 years ago
AW, maybe, you could plant it next to the foundation of your home, this way the root system would be kept warmer and also drier. I'm in cold zone 4 and I have no problems growing buddleia against the foundation, passiflora incarnata should also work this way.