New to Passiflora seeds
I acquired some passionflower seeds, P. alata, P. edulis, and P. Caerulea, all about 80% viable, and can't wait to see them in full bloom this summer, but I need some help first.
Germination: I have a germination box with heating mat, I'm guessing I should put the seeds maybe 1/2" in the soil and keep it moist, but is there anything I should do to the seeds first like soak them in water or sand the outer coating off?
Transplant: I'm not sure if these should be grown in pots or rooted directly into the soil, it seems like they'll outgrow pots very fast.
Winter: I live in MA so the ground freezes and we get tons of snow (usually), if I plant these outside will they die off in the winter and grow back in the spring, or will I need to get more seeds each season?
Any other information would be greatly helpful and very appreciated, thank you.