Hi, Passiflora and many other plants will do great in the bottles, just to give you an idea of what's possible with the crates, and bottles. I have had 5 crates stack on top of each other, occupying a small floor area of 20''wide by 10'' deep, each one is 14'' high, for a total of 70 inches tall, that's 8 bottles in each crate x 5 for a total of 40 bottles x 5 cuttings in each equals 200 cuttings, that I can root in 2 square feet area.
Carlos O