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Post by hortusbrambonii on Aug 14, 2014 7:26:12 GMT -5
Anyone here who knows what the most cold-hardy (and short-season) passiflora with interesting edible fruits would be?
P. caerulea grows here in Belgium and gives fruit, butt not really the most interesting fruit. P. incarnata grows here but it seems that the season is too short to form fruits here if it has to come back after freezing off. Most other species are not cold-hardy enough (and P. lutea hasn't interesting fruit)
Anyone here who has experience with P. tucumanensis (syn P. naviculata I think)? It is said to be quite cold-hardy and have small but good-tasting fruit.
Are there interesting projects in growing Northern passion fruits?
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Post by khumlee on Aug 15, 2014 2:23:15 GMT -5
P. incarnata shouldn't be to late for belgium climat, but it's not selffertile plant, you need two plant from different seeds or clone.
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Post by nicollas on Aug 15, 2014 2:34:34 GMT -5
I'm interested by P. incarnata, is there any cultivar selected sofar ?
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Post by hortusbrambonii on Aug 15, 2014 2:47:53 GMT -5
The thing with incarnata is that it hates me and refuses to germinate so I can't tell much about it... I have one seedling now though... (Which will be kept inside this winter) Never seen its flower in real life nor tasted its fruit... An interesting place to get Passiflora in the Benelux is www.passifloratuin.com/ but I suppose they do vegetative propagation so you still have to find a second clone from elsewhere if you want seed... |
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Post by nicollas on Aug 15, 2014 3:51:43 GMT -5
They have 2 cultivars, a non named and the alba. But i've read hardiness at -10°C that is too short for me
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Post by hortusbrambonii on Aug 15, 2014 3:55:51 GMT -5
I think atash has been saying some interesting things about cold-climate edible passifloras and hybrids in a FB-thread, an about why incarnata is cold-hardy-enough but it likes more tropical summers than our cold sea-climate can offer to flower and set fruit. And the misery is that you always need to have 2 clones (with flowers open at the same time) because of self-incompatibility. Problem with making hybrids would be that interspecies hybrids have less fertility and the tasty bits are in between the seeds... So I'm going to try the tucumanensis/naviculata now, which is hard to find and to find information on but is said to have small but delicious fruit and to be quite cold-hardy. I've ordered one plant from 'de passiforatuin' that has to arrive yet and I also have a few seeds that arrived last week of a white variety through the PSI seed bank sale that I hope will give me at least one plant. P. caerulea is good for flowers but not for fruit (I have a regular garden variety and ordered 'constance eliott' with white flowers so I have a pollinator for it) but for some reason I don't trust P. incarnata to do much here besides probably producing leaves that that make people calm... (I prefer just Melissa-leaves for that though, don't like hard stuff...) |
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Post by hortusbrambonii on Aug 15, 2014 3:58:32 GMT -5
Other sources give lower temperature for incarnata, but the thing is that it freezes back to the ground and has to come back from scratch in colder climates while in warmer climates it just can grow year-round.
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Post by hortusbrambonii on Aug 19, 2014 9:41:36 GMT -5
P. tucmanensis, P. incarnata (a second one, I do already have a seedling) and P. caerulea 'contance eliott' arrived today from de passifloratuin. Plants look good.
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Post by mountaindweller on Aug 19, 2014 22:28:53 GMT -5
I never heard that you need two passionfruits to get fruit. I was able to sprout the incarnata once but it dies me. The very usual black passionfruit survives approx. -5C, but I cannot tell if it fruits in that climate because the cockatoos decided that it is so funny to nibble the flowers away. They need good food btw (the passionfruit I mean).
The banana passionfruit is more cold hardy apparently, but mine died, maybe because it was too dry??
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