So glad you've all enjoyed the article, Thank you. The flowers are just the coolest things to see in person and worth the effort to try growing in areas outside of the tropical plant range.They really are pretty easy to grow, the hardest is keeping them over the winter without a greenhouse to give them the light they need. The ones here just went outside for the summer and look a bit ragged, but they grow extremely fast and will be blooming by mid summer.
I would have to look up the specific passi's pollinated by hummingbirds. I have seen the hummers around the red ones here, but am not aware of any pollinating being done with resulting fruit.
The passi in the home page thumbnail is Passiflora 'Crimson Tears' hybridized by Roland Fischer and named in 2002 for the anniversary of September 11, 2001. Another red, in the center of the first row of images with the white inner corona, is P. 'Lady Margaret'. Excellent bloomer and very easy to overwinter.