I have now had Hoya maingayi for just over a year, but it is shown no signs of wanting to put on a peduncle. The plant is now in an 8″ pot and from the bottom of that pot to the top of the trellis, it is 33″ tall. If it does not put on a peduncle in the next year, it may be the first candidate to move on to a new Hoya Hall of Shame List!