Within 18 months of growing the plant I had my first peduncle; I was so excited and watched it every day for weeks, and it never budded up.
Soon I had a second peduncle and nothing happened. It grew in my basement grow tent where I figured it was not cool enough for it so I moved it outside for the summer. It grew well, but my precious peduncles yellowed and fell off.
I decided to let it live in the regular house over the winter in my bedroom window to see if these conditions would suit it for flowering. It grew a little, and put on another peduncle but no budding. More tomorrow. Below the buds of Hoya thailandica after a five year wait: