Here is a photo of one of the peduncles.

Most Hoyas will be ok at 45, but they won't be happy enough to bloom. I try to keep my GH at or slightly below 60 once it gets cold. At those temps, it may still bloom for you this fall. Or it may wait until spring. Either way, you can expect blooms soon. Congrats!

Denise in Omaha

Holy catz, my husband would have a coronary if I heated my greenhouse beyond 45 deg. It would just cost too much money to do that. Would be so nice though.

Thank you for the information.