Pinus cembra seed question
Hello all. I've been reading about Pinus cembra seeds and could use some confirmation. As I understand it seeds from this tree take 3 years to mature, correct? Also, I think this tree is called "monoecious" however I've read that it cannot pollinate its own seeds. Finally, seed stratification takes anywhere between 60 and 270 days. That's a huge window.
Do I have all of this info correct?