Iridescence should be hardy for you. @kiwinut is the breeder and he’s a half zone cooler than you.
The tetraploids I’ve been growing are related to Iridescence actually. Mine are F2 and F3 seedlings from a now retired fellow who ran an Etsy shop called passifloriata, he bred them from the many of the same P. cincinnata and edulis hybrids with incarnata that Kiwinut backcrossed with incarnata. So the seeds I’ll send you are basically second cousins of Iridescence. Mine are tetraploid whereas Iridescence may be triploid and Iridescence has a larger fraction of incarnata ancestry (which definitely shows in the fruit shape, mine are very P. cincinnata looking).
How do you mean? With any passion fruit zone 8 and below the whole vine will freeze to the ground every year. To the best of my knowledge anyway. Maybe some caerula varieties can keep some above ground vines in warmer parts of zone 8? But no one grows caerula for the fruit anyway.
Thank you for the advice. I have some more straight incarnata in the fridge I’ll try in another month. The one from Roman I’ll give another week and then I can move the soil block to the fridge for another month and see if that helps.
Right that’s pretty much exactly what I mean, I had caerulea in ground but it was just too vigorous. Now I basically want something I can push the limits on here, maybe mulch it over or something, but get good fruit, noting I prefer sweet over tart. I wouldn’t mind another like caerulea too, but it would have to be much less vigorous.
Seems like they continue to sprout out for a while…. Just recently a few came up from what was the hot side of the tray (nearly one month since starting them), so I still have hope for Timbo.
I’m gonna keep the silent ones on mild heat and domed to see if some are just taking a long time to germinate, but the jury is still out. At least it’s looking about time to up-pot the first ones. They have roots running out everywhere now.
I put them in on March 27 at night after being in the fridge for a few months with most being scarcified. Currently one of the many seeds has “half germinated” (has its head still burried). I have them on a heat mat at 90 with some mylar blanket to keep them toasty.
All in all, about 10 days of warm time and just the first one is emerging
I would use an independent thermometer to verify the temperature, if it’s above 90-95 you’re decreasing viability and not increasing it. Others on the forums have noted that some heating mats use poorly calibrated thermometers that cause overheating
