Great alternative to other non-native vines like wisteria or honeysuckle. Hoping to get some passionfruits as well this fall!
Edit: as a commenter pointed out that is in fact a carpenter bee not a bumblebee.
Got a similar idea to you, growing up the side of my house! Yeah mine didnt really get going until June, I got them when they were already a year old so hopefully next year! I will say yours look a bit more leggy than mine so they might benefit from more sun, if possible.