I personally have never sprouted plumeria seeds but this year will be my first. I have waited a couple of summers for two of my plumerias that had seed pods to burst and they did this week. I had come across this YouTube video
https://www.youtube.com/watch?...
and this is my plan. I will share if I have any success. Honestly, I am not sure if the seed pods burst because of our recent heat wave or it really was time. Please let us know how it works out for you and what was your course of action. Growing seedlings is a long commitment. My understanding is that it take 4+ years before you get a blossom? Is that true? Any seasoned growers, please share? I will share my success or failure sprouting my seeds.