Passiflora caerulea in Zone 5b/6a
Last year I bought some Passiflora caerulea seed and after many months got three of the seeds to germinate. Two of the plants are still alive (one was killed in a weeding accident) and one is a monster about 20 foot long. No blooms this year.
Anyway, according to what I am reading, it is less cold hardy than I thought and at the minimum will require some winter protection. So some questions:
1) Will it survive Zone 5b/6a?
2) How do I winter protect it?