Earlier Setbacks and Problems With Hoya vitiensis

I was very excited with I saw the first peduncle developing on Hoya vitiensis, but unfortunately my excitement was premature.  The buds fell off as soon as they started to form and eventually I lost that first peduncle.  I put the plant outside in the greenhouse over the past summer and it grew pretty well putting on two new peduncles, but they refused to bud up.

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